Home / 22,142.26-30,555.71-12,070.90

Finding the Fourth Proportional to 22,142.26, 30,555.71 and 12,070.90

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Solution

The fourth proportional to 22,142.26, 30,555.71 and 12,070.90 is: 16,657.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,142.26 : 30,555.71 = 12,070.90 : x
  2. Step 2: Convert to fraction form
    22,142.26/30,555.71 = 12,070.90/x
  3. Step 3: Cross multiply
    22,142.26x = 30,555.71 × 12,070.90
  4. Step 4: Simplify right side
    22,142.26x = 368,834,823.06
  5. Step 5: Solve for x
    x = 368,834,823.06/22,142.26
  6. Step 6: Final answer
    x = 16,657.50

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Half scale
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Double scale
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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.