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Finding the Fourth Proportional to 28,345.71, 42,503.84 and 8,352.59

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Solution

The fourth proportional to 28,345.71, 42,503.84 and 8,352.59 is: 12,524.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,345.71 : 42,503.84 = 8,352.59 : x
  2. Step 2: Convert to fraction form
    28,345.71/42,503.84 = 8,352.59/x
  3. Step 3: Cross multiply
    28,345.71x = 42,503.84 × 8,352.59
  4. Step 4: Simplify right side
    28,345.71x = 355,016,925.99
  5. Step 5: Solve for x
    x = 355,016,925.99/28,345.71
  6. Step 6: Final answer
    x = 12,524.54

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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.