Home / 28,104.19-42,160.86-13,126.29

Finding the Fourth Proportional to 28,104.19, 42,160.86 and 13,126.29

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Solution

The fourth proportional to 28,104.19, 42,160.86 and 13,126.29 is: 19,691.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,104.19 : 42,160.86 = 13,126.29 : x
  2. Step 2: Convert to fraction form
    28,104.19/42,160.86 = 13,126.29/x
  3. Step 3: Cross multiply
    28,104.19x = 42,160.86 × 13,126.29
  4. Step 4: Simplify right side
    28,104.19x = 553,415,464.21
  5. Step 5: Solve for x
    x = 553,415,464.21/28,104.19
  6. Step 6: Final answer
    x = 19,691.56

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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.