Home / 25,153.30-34,709.16-15,079.86

Finding the Fourth Proportional to 25,153.30, 34,709.16 and 15,079.86

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Solution

The fourth proportional to 25,153.30, 34,709.16 and 15,079.86 is: 20,808.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,153.30 : 34,709.16 = 15,079.86 : x
  2. Step 2: Convert to fraction form
    25,153.30/34,709.16 = 15,079.86/x
  3. Step 3: Cross multiply
    25,153.30x = 34,709.16 × 15,079.86
  4. Step 4: Simplify right side
    25,153.30x = 523,409,273.52
  5. Step 5: Solve for x
    x = 523,409,273.52/25,153.30
  6. Step 6: Final answer
    x = 20,808.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.