Home / 28,152.54-42,170.31-13,373.10

Finding the Fourth Proportional to 28,152.54, 42,170.31 and 13,373.10

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Solution

The fourth proportional to 28,152.54, 42,170.31 and 13,373.10 is: 20,031.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,152.54 : 42,170.31 = 13,373.10 : x
  2. Step 2: Convert to fraction form
    28,152.54/42,170.31 = 13,373.10/x
  3. Step 3: Cross multiply
    28,152.54x = 42,170.31 × 13,373.10
  4. Step 4: Simplify right side
    28,152.54x = 563,947,772.66
  5. Step 5: Solve for x
    x = 563,947,772.66/28,152.54
  6. Step 6: Final answer
    x = 20,031.86

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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.