Home / 28,294.48-42,434.78-10,279.76

Finding the Fourth Proportional to 28,294.48, 42,434.78 and 10,279.76

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Solution

The fourth proportional to 28,294.48, 42,434.78 and 10,279.76 is: 15,417.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,294.48 : 42,434.78 = 10,279.76 : x
  2. Step 2: Convert to fraction form
    28,294.48/42,434.78 = 10,279.76/x
  3. Step 3: Cross multiply
    28,294.48x = 42,434.78 × 10,279.76
  4. Step 4: Simplify right side
    28,294.48x = 436,219,354.05
  5. Step 5: Solve for x
    x = 436,219,354.05/28,294.48
  6. Step 6: Final answer
    x = 15,417.12

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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.