Home / 28,148.40-38,863.80-25,781.04

Finding the Fourth Proportional to 28,148.40, 38,863.80 and 25,781.04

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Solution

The fourth proportional to 28,148.40, 38,863.80 and 25,781.04 is: 35,595.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,148.40 : 38,863.80 = 25,781.04 : x
  2. Step 2: Convert to fraction form
    28,148.40/38,863.80 = 25,781.04/x
  3. Step 3: Cross multiply
    28,148.40x = 38,863.80 × 25,781.04
  4. Step 4: Simplify right side
    28,148.40x = 1,001,949,182.35
  5. Step 5: Solve for x
    x = 1,001,949,182.35/28,148.40
  6. Step 6: Final answer
    x = 35,595.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.