Home / 22,840.26-31,520.16-12,769.80

Finding the Fourth Proportional to 22,840.26, 31,520.16 and 12,769.80

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Solution

The fourth proportional to 22,840.26, 31,520.16 and 12,769.80 is: 17,622.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,840.26 : 31,520.16 = 12,769.80 : x
  2. Step 2: Convert to fraction form
    22,840.26/31,520.16 = 12,769.80/x
  3. Step 3: Cross multiply
    22,840.26x = 31,520.16 × 12,769.80
  4. Step 4: Simplify right side
    22,840.26x = 402,506,139.17
  5. Step 5: Solve for x
    x = 402,506,139.17/22,840.26
  6. Step 6: Final answer
    x = 17,622.66

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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.