Home / 31,641.48-47,498.90-18,503.28

Finding the Fourth Proportional to 31,641.48, 47,498.90 and 18,503.28

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Solution

The fourth proportional to 31,641.48, 47,498.90 and 18,503.28 is: 27,776.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,641.48 : 47,498.90 = 18,503.28 : x
  2. Step 2: Convert to fraction form
    31,641.48/47,498.90 = 18,503.28/x
  3. Step 3: Cross multiply
    31,641.48x = 47,498.90 × 18,503.28
  4. Step 4: Simplify right side
    31,641.48x = 878,885,353.88
  5. Step 5: Solve for x
    x = 878,885,353.88/31,641.48
  6. Step 6: Final answer
    x = 27,776.37

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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.