Home / 25,451.86-38,178.99-21,001.27

Finding the Fourth Proportional to 25,451.86, 38,178.99 and 21,001.27

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Solution

The fourth proportional to 25,451.86, 38,178.99 and 21,001.27 is: 31,502.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,451.86 : 38,178.99 = 21,001.27 : x
  2. Step 2: Convert to fraction form
    25,451.86/38,178.99 = 21,001.27/x
  3. Step 3: Cross multiply
    25,451.86x = 38,178.99 × 21,001.27
  4. Step 4: Simplify right side
    25,451.86x = 801,807,277.32
  5. Step 5: Solve for x
    x = 801,807,277.32/25,451.86
  6. Step 6: Final answer
    x = 31,502.90

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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.