Home / 31,487.46-47,237.42-8,998.34

Finding the Fourth Proportional to 31,487.46, 47,237.42 and 8,998.34

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Solution

The fourth proportional to 31,487.46, 47,237.42 and 8,998.34 is: 13,499.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,487.46 : 47,237.42 = 8,998.34 : x
  2. Step 2: Convert to fraction form
    31,487.46/47,237.42 = 8,998.34/x
  3. Step 3: Cross multiply
    31,487.46x = 47,237.42 × 8,998.34
  4. Step 4: Simplify right side
    31,487.46x = 425,058,506.47
  5. Step 5: Solve for x
    x = 425,058,506.47/31,487.46
  6. Step 6: Final answer
    x = 13,499.29

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.