Home / 25,489.19-38,240.68-18,140.30

Finding the Fourth Proportional to 25,489.19, 38,240.68 and 18,140.30

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Solution

The fourth proportional to 25,489.19, 38,240.68 and 18,140.30 is: 27,215.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,489.19 : 38,240.68 = 18,140.30 : x
  2. Step 2: Convert to fraction form
    25,489.19/38,240.68 = 18,140.30/x
  3. Step 3: Cross multiply
    25,489.19x = 38,240.68 × 18,140.30
  4. Step 4: Simplify right side
    25,489.19x = 693,697,407.40
  5. Step 5: Solve for x
    x = 693,697,407.40/25,489.19
  6. Step 6: Final answer
    x = 27,215.36

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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.