Home / 28,498.60-42,747.90-19,167.40

Finding the Fourth Proportional to 28,498.60, 42,747.90 and 19,167.40

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Solution

The fourth proportional to 28,498.60, 42,747.90 and 19,167.40 is: 28,751.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,498.60 : 42,747.90 = 19,167.40 : x
  2. Step 2: Convert to fraction form
    28,498.60/42,747.90 = 19,167.40/x
  3. Step 3: Cross multiply
    28,498.60x = 42,747.90 × 19,167.40
  4. Step 4: Simplify right side
    28,498.60x = 819,366,098.46
  5. Step 5: Solve for x
    x = 819,366,098.46/28,498.60
  6. Step 6: Final answer
    x = 28,751.10

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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.