Home / 20,409.98-28,167.02-13,592.31

Finding the Fourth Proportional to 20,409.98, 28,167.02 and 13,592.31

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Solution

The fourth proportional to 20,409.98, 28,167.02 and 13,592.31 is: 18,758.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,409.98 : 28,167.02 = 13,592.31 : x
  2. Step 2: Convert to fraction form
    20,409.98/28,167.02 = 13,592.31/x
  3. Step 3: Cross multiply
    20,409.98x = 28,167.02 × 13,592.31
  4. Step 4: Simplify right side
    20,409.98x = 382,854,821.46
  5. Step 5: Solve for x
    x = 382,854,821.46/20,409.98
  6. Step 6: Final answer
    x = 18,758.22

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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.