Home / 28,316.52-42,474.74-12,715.92

Finding the Fourth Proportional to 28,316.52, 42,474.74 and 12,715.92

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Solution

The fourth proportional to 28,316.52, 42,474.74 and 12,715.92 is: 19,073.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,316.52 : 42,474.74 = 12,715.92 : x
  2. Step 2: Convert to fraction form
    28,316.52/42,474.74 = 12,715.92/x
  3. Step 3: Cross multiply
    28,316.52x = 42,474.74 × 12,715.92
  4. Step 4: Simplify right side
    28,316.52x = 540,105,332.28
  5. Step 5: Solve for x
    x = 540,105,332.28/28,316.52
  6. Step 6: Final answer
    x = 19,073.86

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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.