Home / 19,708.32-29,561.40-11,915.04

Finding the Fourth Proportional to 19,708.32, 29,561.40 and 11,915.04

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Solution

The fourth proportional to 19,708.32, 29,561.40 and 11,915.04 is: 17,871.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,708.32 : 29,561.40 = 11,915.04 : x
  2. Step 2: Convert to fraction form
    19,708.32/29,561.40 = 11,915.04/x
  3. Step 3: Cross multiply
    19,708.32x = 29,561.40 × 11,915.04
  4. Step 4: Simplify right side
    19,708.32x = 352,225,263.46
  5. Step 5: Solve for x
    x = 352,225,263.46/19,708.32
  6. Step 6: Final answer
    x = 17,871.91

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