Home / 28,047.60-42,092.25-13,261.05

Finding the Fourth Proportional to 28,047.60, 42,092.25 and 13,261.05

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Solution

The fourth proportional to 28,047.60, 42,092.25 and 13,261.05 is: 19,901.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,047.60 : 42,092.25 = 13,261.05 : x
  2. Step 2: Convert to fraction form
    28,047.60/42,092.25 = 13,261.05/x
  3. Step 3: Cross multiply
    28,047.60x = 42,092.25 × 13,261.05
  4. Step 4: Simplify right side
    28,047.60x = 558,187,431.86
  5. Step 5: Solve for x
    x = 558,187,431.86/28,047.60
  6. Step 6: Final answer
    x = 19,901.43

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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.