Home / 28,700.11-43,042.35-18,154.29

Finding the Fourth Proportional to 28,700.11, 43,042.35 and 18,154.29

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Solution

The fourth proportional to 28,700.11, 43,042.35 and 18,154.29 is: 27,226.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,700.11 : 43,042.35 = 18,154.29 : x
  2. Step 2: Convert to fraction form
    28,700.11/43,042.35 = 18,154.29/x
  3. Step 3: Cross multiply
    28,700.11x = 43,042.35 × 18,154.29
  4. Step 4: Simplify right side
    28,700.11x = 781,403,304.18
  5. Step 5: Solve for x
    x = 781,403,304.18/28,700.11
  6. Step 6: Final answer
    x = 27,226.50

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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.