Home / 31,875.36-47,818.50-9,690.96

Finding the Fourth Proportional to 31,875.36, 47,818.50 and 9,690.96

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Solution

The fourth proportional to 31,875.36, 47,818.50 and 9,690.96 is: 14,538.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,875.36 : 47,818.50 = 9,690.96 : x
  2. Step 2: Convert to fraction form
    31,875.36/47,818.50 = 9,690.96/x
  3. Step 3: Cross multiply
    31,875.36x = 47,818.50 × 9,690.96
  4. Step 4: Simplify right side
    31,875.36x = 463,407,170.76
  5. Step 5: Solve for x
    x = 463,407,170.76/31,875.36
  6. Step 6: Final answer
    x = 14,538.10

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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.