Home / 28,104.12-42,155.20-7,044.35

Finding the Fourth Proportional to 28,104.12, 42,155.20 and 7,044.35

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Solution

The fourth proportional to 28,104.12, 42,155.20 and 7,044.35 is: 10,566.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,104.12 : 42,155.20 = 7,044.35 : x
  2. Step 2: Convert to fraction form
    28,104.12/42,155.20 = 7,044.35/x
  3. Step 3: Cross multiply
    28,104.12x = 42,155.20 × 7,044.35
  4. Step 4: Simplify right side
    28,104.12x = 296,955,983.12
  5. Step 5: Solve for x
    x = 296,955,983.12/28,104.12
  6. Step 6: Final answer
    x = 10,566.28

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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.