Home / 25,129.45-34,670.86-14,515.21

Finding the Fourth Proportional to 25,129.45, 34,670.86 and 14,515.21

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Solution

The fourth proportional to 25,129.45, 34,670.86 and 14,515.21 is: 20,026.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,129.45 : 34,670.86 = 14,515.21 : x
  2. Step 2: Convert to fraction form
    25,129.45/34,670.86 = 14,515.21/x
  3. Step 3: Cross multiply
    25,129.45x = 34,670.86 × 14,515.21
  4. Step 4: Simplify right side
    25,129.45x = 503,254,813.78
  5. Step 5: Solve for x
    x = 503,254,813.78/25,129.45
  6. Step 6: Final answer
    x = 20,026.50

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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.