Home / 28,862.38-39,830.88-16,115.07

Finding the Fourth Proportional to 28,862.38, 39,830.88 and 16,115.07

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Solution

The fourth proportional to 28,862.38, 39,830.88 and 16,115.07 is: 22,239.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,862.38 : 39,830.88 = 16,115.07 : x
  2. Step 2: Convert to fraction form
    28,862.38/39,830.88 = 16,115.07/x
  3. Step 3: Cross multiply
    28,862.38x = 39,830.88 × 16,115.07
  4. Step 4: Simplify right side
    28,862.38x = 641,877,419.36
  5. Step 5: Solve for x
    x = 641,877,419.36/28,862.38
  6. Step 6: Final answer
    x = 22,239.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.