Home / 22,005.61-30,368.33-12,447.21

Finding the Fourth Proportional to 22,005.61, 30,368.33 and 12,447.21

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Solution

The fourth proportional to 22,005.61, 30,368.33 and 12,447.21 is: 17,177.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,005.61 : 30,368.33 = 12,447.21 : x
  2. Step 2: Convert to fraction form
    22,005.61/30,368.33 = 12,447.21/x
  3. Step 3: Cross multiply
    22,005.61x = 30,368.33 × 12,447.21
  4. Step 4: Simplify right side
    22,005.61x = 378,000,980.86
  5. Step 5: Solve for x
    x = 378,000,980.86/22,005.61
  6. Step 6: Final answer
    x = 17,177.48

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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.