Home / 25,925.81-38,887.02-12,766.55

Finding the Fourth Proportional to 25,925.81, 38,887.02 and 12,766.55

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Solution

The fourth proportional to 25,925.81, 38,887.02 and 12,766.55 is: 19,148.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,925.81 : 38,887.02 = 12,766.55 : x
  2. Step 2: Convert to fraction form
    25,925.81/38,887.02 = 12,766.55/x
  3. Step 3: Cross multiply
    25,925.81x = 38,887.02 × 12,766.55
  4. Step 4: Simplify right side
    25,925.81x = 496,452,890.75
  5. Step 5: Solve for x
    x = 496,452,890.75/25,925.81
  6. Step 6: Final answer
    x = 19,148.99

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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.