Home / 28,045.28-42,084-11,402.24

Finding the Fourth Proportional to 28,045.28, 42,084 and 11,402.24

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Solution

The fourth proportional to 28,045.28, 42,084 and 11,402.24 is: 17,109.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,045.28 : 42,084 = 11,402.24 : x
  2. Step 2: Convert to fraction form
    28,045.28/42,084 = 11,402.24/x
  3. Step 3: Cross multiply
    28,045.28x = 42,084 × 11,402.24
  4. Step 4: Simplify right side
    28,045.28x = 479,851,868.16
  5. Step 5: Solve for x
    x = 479,851,868.16/28,045.28
  6. Step 6: Final answer
    x = 17,109.90

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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.