Home / 28,239.52-42,350.64-10,711.84

Finding the Fourth Proportional to 28,239.52, 42,350.64 and 10,711.84

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Solution

The fourth proportional to 28,239.52, 42,350.64 and 10,711.84 is: 16,064.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,239.52 : 42,350.64 = 10,711.84 : x
  2. Step 2: Convert to fraction form
    28,239.52/42,350.64 = 10,711.84/x
  3. Step 3: Cross multiply
    28,239.52x = 42,350.64 × 10,711.84
  4. Step 4: Simplify right side
    28,239.52x = 453,653,279.58
  5. Step 5: Solve for x
    x = 453,653,279.58/28,239.52
  6. Step 6: Final answer
    x = 16,064.48

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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.