Home / 30,161.86-45,242.79-9,381.22

Finding the Fourth Proportional to 30,161.86, 45,242.79 and 9,381.22

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Solution

The fourth proportional to 30,161.86, 45,242.79 and 9,381.22 is: 14,071.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,161.86 : 45,242.79 = 9,381.22 : x
  2. Step 2: Convert to fraction form
    30,161.86/45,242.79 = 9,381.22/x
  3. Step 3: Cross multiply
    30,161.86x = 45,242.79 × 9,381.22
  4. Step 4: Simplify right side
    30,161.86x = 424,432,566.40
  5. Step 5: Solve for x
    x = 424,432,566.40/30,161.86
  6. Step 6: Final answer
    x = 14,071.83

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Similar ratio
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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.