Home / 28,463.61-42,688.08-8,467.92

Finding the Fourth Proportional to 28,463.61, 42,688.08 and 8,467.92

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Solution

The fourth proportional to 28,463.61, 42,688.08 and 8,467.92 is: 12,699.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,463.61 : 42,688.08 = 8,467.92 : x
  2. Step 2: Convert to fraction form
    28,463.61/42,688.08 = 8,467.92/x
  3. Step 3: Cross multiply
    28,463.61x = 42,688.08 × 8,467.92
  4. Step 4: Simplify right side
    28,463.61x = 361,479,246.39
  5. Step 5: Solve for x
    x = 361,479,246.39/28,463.61
  6. Step 6: Final answer
    x = 12,699.70

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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.