Home / 25,657.56-38,459.61-12,491.82

Finding the Fourth Proportional to 25,657.56, 38,459.61 and 12,491.82

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Solution

The fourth proportional to 25,657.56, 38,459.61 and 12,491.82 is: 18,724.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,657.56 : 38,459.61 = 12,491.82 : x
  2. Step 2: Convert to fraction form
    25,657.56/38,459.61 = 12,491.82/x
  3. Step 3: Cross multiply
    25,657.56x = 38,459.61 × 12,491.82
  4. Step 4: Simplify right side
    25,657.56x = 480,430,525.39
  5. Step 5: Solve for x
    x = 480,430,525.39/25,657.56
  6. Step 6: Final answer
    x = 18,724.72

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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.