Home / 28,148.46-42,237.28-12,364.59

Finding the Fourth Proportional to 28,148.46, 42,237.28 and 12,364.59

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Solution

The fourth proportional to 28,148.46, 42,237.28 and 12,364.59 is: 18,553.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,148.46 : 42,237.28 = 12,364.59 : x
  2. Step 2: Convert to fraction form
    28,148.46/42,237.28 = 12,364.59/x
  3. Step 3: Cross multiply
    28,148.46x = 42,237.28 × 12,364.59
  4. Step 4: Simplify right side
    28,148.46x = 522,246,649.92
  5. Step 5: Solve for x
    x = 522,246,649.92/28,148.46
  6. Step 6: Final answer
    x = 18,553.29

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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.