Home / 28,306.08-42,442.86-11,677.56

Finding the Fourth Proportional to 28,306.08, 42,442.86 and 11,677.56

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Solution

The fourth proportional to 28,306.08, 42,442.86 and 11,677.56 is: 17,509.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,306.08 : 42,442.86 = 11,677.56 : x
  2. Step 2: Convert to fraction form
    28,306.08/42,442.86 = 11,677.56/x
  3. Step 3: Cross multiply
    28,306.08x = 42,442.86 × 11,677.56
  4. Step 4: Simplify right side
    28,306.08x = 495,629,044.22
  5. Step 5: Solve for x
    x = 495,629,044.22/28,306.08
  6. Step 6: Final answer
    x = 17,509.63

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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.