Home / 28,346.51-42,505.18-12,755.63

Finding the Fourth Proportional to 28,346.51, 42,505.18 and 12,755.63

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Solution

The fourth proportional to 28,346.51, 42,505.18 and 12,755.63 is: 19,126.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,346.51 : 42,505.18 = 12,755.63 : x
  2. Step 2: Convert to fraction form
    28,346.51/42,505.18 = 12,755.63/x
  3. Step 3: Cross multiply
    28,346.51x = 42,505.18 × 12,755.63
  4. Step 4: Simplify right side
    28,346.51x = 542,180,104.75
  5. Step 5: Solve for x
    x = 542,180,104.75/28,346.51
  6. Step 6: Final answer
    x = 19,126.88

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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.