Home / 18,988.16-28,488.02-13,452.22

Finding the Fourth Proportional to 18,988.16, 28,488.02 and 13,452.22

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Solution

The fourth proportional to 18,988.16, 28,488.02 and 13,452.22 is: 20,182.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,988.16 : 28,488.02 = 13,452.22 : x
  2. Step 2: Convert to fraction form
    18,988.16/28,488.02 = 13,452.22/x
  3. Step 3: Cross multiply
    18,988.16x = 28,488.02 × 13,452.22
  4. Step 4: Simplify right side
    18,988.16x = 383,226,973.92
  5. Step 5: Solve for x
    x = 383,226,973.92/18,988.16
  6. Step 6: Final answer
    x = 20,182.41

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1.5x scale

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.