Home / 31,499.68-47,256.30-15,713.20

Finding the Fourth Proportional to 31,499.68, 47,256.30 and 15,713.20

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Solution

The fourth proportional to 31,499.68, 47,256.30 and 15,713.20 is: 23,573.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,499.68 : 47,256.30 = 15,713.20 : x
  2. Step 2: Convert to fraction form
    31,499.68/47,256.30 = 15,713.20/x
  3. Step 3: Cross multiply
    31,499.68x = 47,256.30 × 15,713.20
  4. Step 4: Simplify right side
    31,499.68x = 742,547,693.16
  5. Step 5: Solve for x
    x = 742,547,693.16/31,499.68
  6. Step 6: Final answer
    x = 23,573.18

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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.