Home / 25,000.57-34,500.82-13,670.12

Finding the Fourth Proportional to 25,000.57, 34,500.82 and 13,670.12

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Solution

The fourth proportional to 25,000.57, 34,500.82 and 13,670.12 is: 18,864.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,000.57 : 34,500.82 = 13,670.12 : x
  2. Step 2: Convert to fraction form
    25,000.57/34,500.82 = 13,670.12/x
  3. Step 3: Cross multiply
    25,000.57x = 34,500.82 × 13,670.12
  4. Step 4: Simplify right side
    25,000.57x = 471,630,108.64
  5. Step 5: Solve for x
    x = 471,630,108.64/25,000.57
  6. Step 6: Final answer
    x = 18,864.77

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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.