Home / 25,795.14-38,686.44-18,856.90

Finding the Fourth Proportional to 25,795.14, 38,686.44 and 18,856.90

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Solution

The fourth proportional to 25,795.14, 38,686.44 and 18,856.90 is: 28,280.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,795.14 : 38,686.44 = 18,856.90 : x
  2. Step 2: Convert to fraction form
    25,795.14/38,686.44 = 18,856.90/x
  3. Step 3: Cross multiply
    25,795.14x = 38,686.44 × 18,856.90
  4. Step 4: Simplify right side
    25,795.14x = 729,506,330.44
  5. Step 5: Solve for x
    x = 729,506,330.44/25,795.14
  6. Step 6: Final answer
    x = 28,280.77

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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.