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Finding the Fourth Proportional to 22,920.04, 31,629.08 and 12,711.01

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Solution

The fourth proportional to 22,920.04, 31,629.08 and 12,711.01 is: 17,540.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,920.04 : 31,629.08 = 12,711.01 : x
  2. Step 2: Convert to fraction form
    22,920.04/31,629.08 = 12,711.01/x
  3. Step 3: Cross multiply
    22,920.04x = 31,629.08 × 12,711.01
  4. Step 4: Simplify right side
    22,920.04x = 402,037,552.17
  5. Step 5: Solve for x
    x = 402,037,552.17/22,920.04
  6. Step 6: Final answer
    x = 17,540.87

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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.