Home / 25,515.86-38,273.17-17,988.32

Finding the Fourth Proportional to 25,515.86, 38,273.17 and 17,988.32

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Solution

The fourth proportional to 25,515.86, 38,273.17 and 17,988.32 is: 26,982.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,515.86 : 38,273.17 = 17,988.32 : x
  2. Step 2: Convert to fraction form
    25,515.86/38,273.17 = 17,988.32/x
  3. Step 3: Cross multiply
    25,515.86x = 38,273.17 × 17,988.32
  4. Step 4: Simplify right side
    25,515.86x = 688,470,080.09
  5. Step 5: Solve for x
    x = 688,470,080.09/25,515.86
  6. Step 6: Final answer
    x = 26,982.05

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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.