Home / 28,508.22-42,771.54-13,715.16

Finding the Fourth Proportional to 28,508.22, 42,771.54 and 13,715.16

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Solution

The fourth proportional to 28,508.22, 42,771.54 and 13,715.16 is: 20,577.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,508.22 : 42,771.54 = 13,715.16 : x
  2. Step 2: Convert to fraction form
    28,508.22/42,771.54 = 13,715.16/x
  3. Step 3: Cross multiply
    28,508.22x = 42,771.54 × 13,715.16
  4. Step 4: Simplify right side
    28,508.22x = 586,618,514.55
  5. Step 5: Solve for x
    x = 586,618,514.55/28,508.22
  6. Step 6: Final answer
    x = 20,577.17

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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.