Home / 45,387.86-68,081.76-13,798.17

Finding the Fourth Proportional to 45,387.86, 68,081.76 and 13,798.17

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Solution

The fourth proportional to 45,387.86, 68,081.76 and 13,798.17 is: 20,697.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,387.86 : 68,081.76 = 13,798.17 : x
  2. Step 2: Convert to fraction form
    45,387.86/68,081.76 = 13,798.17/x
  3. Step 3: Cross multiply
    45,387.86x = 68,081.76 × 13,798.17
  4. Step 4: Simplify right side
    45,387.86x = 939,403,698.38
  5. Step 5: Solve for x
    x = 939,403,698.38/45,387.86
  6. Step 6: Final answer
    x = 20,697.25

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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.