Home / 25,685.13-35,445.27-18,039.15

Finding the Fourth Proportional to 25,685.13, 35,445.27 and 18,039.15

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Solution

The fourth proportional to 25,685.13, 35,445.27 and 18,039.15 is: 24,893.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,685.13 : 35,445.27 = 18,039.15 : x
  2. Step 2: Convert to fraction form
    25,685.13/35,445.27 = 18,039.15/x
  3. Step 3: Cross multiply
    25,685.13x = 35,445.27 × 18,039.15
  4. Step 4: Simplify right side
    25,685.13x = 639,402,542.32
  5. Step 5: Solve for x
    x = 639,402,542.32/25,685.13
  6. Step 6: Final answer
    x = 24,893.88

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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.