Home / 27,909.15-41,864.94-13,875.90

Finding the Fourth Proportional to 27,909.15, 41,864.94 and 13,875.90

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Solution

The fourth proportional to 27,909.15, 41,864.94 and 13,875.90 is: 20,814.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,909.15 : 41,864.94 = 13,875.90 : x
  2. Step 2: Convert to fraction form
    27,909.15/41,864.94 = 13,875.90/x
  3. Step 3: Cross multiply
    27,909.15x = 41,864.94 × 13,875.90
  4. Step 4: Simplify right side
    27,909.15x = 580,913,720.95
  5. Step 5: Solve for x
    x = 580,913,720.95/27,909.15
  6. Step 6: Final answer
    x = 20,814.45

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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.