Home / 25,497.36-38,213.10-18,870.75

Finding the Fourth Proportional to 25,497.36, 38,213.10 and 18,870.75

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Solution

The fourth proportional to 25,497.36, 38,213.10 and 18,870.75 is: 28,281.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,497.36 : 38,213.10 = 18,870.75 : x
  2. Step 2: Convert to fraction form
    25,497.36/38,213.10 = 18,870.75/x
  3. Step 3: Cross multiply
    25,497.36x = 38,213.10 × 18,870.75
  4. Step 4: Simplify right side
    25,497.36x = 721,109,856.83
  5. Step 5: Solve for x
    x = 721,109,856.83/25,497.36
  6. Step 6: Final answer
    x = 28,281.75

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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.