Home / 28,042.81-42,257.66-25,410.20

Finding the Fourth Proportional to 28,042.81, 42,257.66 and 25,410.20

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Solution

The fourth proportional to 28,042.81, 42,257.66 and 25,410.20 is: 38,290.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,042.81 : 42,257.66 = 25,410.20 : x
  2. Step 2: Convert to fraction form
    28,042.81/42,257.66 = 25,410.20/x
  3. Step 3: Cross multiply
    28,042.81x = 42,257.66 × 25,410.20
  4. Step 4: Simplify right side
    28,042.81x = 1,073,775,253.79
  5. Step 5: Solve for x
    x = 1,073,775,253.79/28,042.81
  6. Step 6: Final answer
    x = 38,290.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.