Home / 19,862.46-29,729.76-10,489.08

Finding the Fourth Proportional to 19,862.46, 29,729.76 and 10,489.08

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Solution

The fourth proportional to 19,862.46, 29,729.76 and 10,489.08 is: 15,699.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,862.46 : 29,729.76 = 10,489.08 : x
  2. Step 2: Convert to fraction form
    19,862.46/29,729.76 = 10,489.08/x
  3. Step 3: Cross multiply
    19,862.46x = 29,729.76 × 10,489.08
  4. Step 4: Simplify right side
    19,862.46x = 311,837,831.02
  5. Step 5: Solve for x
    x = 311,837,831.02/19,862.46
  6. Step 6: Final answer
    x = 15,699.86

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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.