Home / 28,158.92-42,206.18-13,346.86

Finding the Fourth Proportional to 28,158.92, 42,206.18 and 13,346.86

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Solution

The fourth proportional to 28,158.92, 42,206.18 and 13,346.86 is: 20,005.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,158.92 : 42,206.18 = 13,346.86 : x
  2. Step 2: Convert to fraction form
    28,158.92/42,206.18 = 13,346.86/x
  3. Step 3: Cross multiply
    28,158.92x = 42,206.18 × 13,346.86
  4. Step 4: Simplify right side
    28,158.92x = 563,319,975.59
  5. Step 5: Solve for x
    x = 563,319,975.59/28,158.92
  6. Step 6: Final answer
    x = 20,005.03

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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.