Home / 28,461.47-42,635.04-14,186.90

Finding the Fourth Proportional to 28,461.47, 42,635.04 and 14,186.90

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Solution

The fourth proportional to 28,461.47, 42,635.04 and 14,186.90 is: 21,251.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,461.47 : 42,635.04 = 14,186.90 : x
  2. Step 2: Convert to fraction form
    28,461.47/42,635.04 = 14,186.90/x
  3. Step 3: Cross multiply
    28,461.47x = 42,635.04 × 14,186.90
  4. Step 4: Simplify right side
    28,461.47x = 604,858,835.80
  5. Step 5: Solve for x
    x = 604,858,835.80/28,461.47
  6. Step 6: Final answer
    x = 21,251.85

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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.