Home / 19,990.14-29,938.58-15,802.04

Finding the Fourth Proportional to 19,990.14, 29,938.58 and 15,802.04

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Solution

The fourth proportional to 19,990.14, 29,938.58 and 15,802.04 is: 23,666.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,990.14 : 29,938.58 = 15,802.04 : x
  2. Step 2: Convert to fraction form
    19,990.14/29,938.58 = 15,802.04/x
  3. Step 3: Cross multiply
    19,990.14x = 29,938.58 × 15,802.04
  4. Step 4: Simplify right side
    19,990.14x = 473,090,638.70
  5. Step 5: Solve for x
    x = 473,090,638.70/19,990.14
  6. Step 6: Final answer
    x = 23,666.20

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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.