Home / 28,469.90-42,730.76-15,154.08

Finding the Fourth Proportional to 28,469.90, 42,730.76 and 15,154.08

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Solution

The fourth proportional to 28,469.90, 42,730.76 and 15,154.08 is: 22,744.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,469.90 : 42,730.76 = 15,154.08 : x
  2. Step 2: Convert to fraction form
    28,469.90/42,730.76 = 15,154.08/x
  3. Step 3: Cross multiply
    28,469.90x = 42,730.76 × 15,154.08
  4. Step 4: Simplify right side
    28,469.90x = 647,545,393.39
  5. Step 5: Solve for x
    x = 647,545,393.39/28,469.90
  6. Step 6: Final answer
    x = 22,744.91

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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.