Home / 28,384.92-42,577.39-8,663.58

Finding the Fourth Proportional to 28,384.92, 42,577.39 and 8,663.58

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Solution

The fourth proportional to 28,384.92, 42,577.39 and 8,663.58 is: 12,995.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,384.92 : 42,577.39 = 8,663.58 : x
  2. Step 2: Convert to fraction form
    28,384.92/42,577.39 = 8,663.58/x
  3. Step 3: Cross multiply
    28,384.92x = 42,577.39 × 8,663.58
  4. Step 4: Simplify right side
    28,384.92x = 368,872,624.46
  5. Step 5: Solve for x
    x = 368,872,624.46/28,384.92
  6. Step 6: Final answer
    x = 12,995.37

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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.