Home / 20,591.98-28,417.02-13,030.43

Finding the Fourth Proportional to 20,591.98, 28,417.02 and 13,030.43

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Solution

The fourth proportional to 20,591.98, 28,417.02 and 13,030.43 is: 17,982.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,591.98 : 28,417.02 = 13,030.43 : x
  2. Step 2: Convert to fraction form
    20,591.98/28,417.02 = 13,030.43/x
  3. Step 3: Cross multiply
    20,591.98x = 28,417.02 × 13,030.43
  4. Step 4: Simplify right side
    20,591.98x = 370,285,915.54
  5. Step 5: Solve for x
    x = 370,285,915.54/20,591.98
  6. Step 6: Final answer
    x = 17,982.04

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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.