Home / 22,930.80-31,646.14-12,725.18

Finding the Fourth Proportional to 22,930.80, 31,646.14 and 12,725.18

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Solution

The fourth proportional to 22,930.80, 31,646.14 and 12,725.18 is: 17,561.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,930.80 : 31,646.14 = 12,725.18 : x
  2. Step 2: Convert to fraction form
    22,930.80/31,646.14 = 12,725.18/x
  3. Step 3: Cross multiply
    22,930.80x = 31,646.14 × 12,725.18
  4. Step 4: Simplify right side
    22,930.80x = 402,702,827.81
  5. Step 5: Solve for x
    x = 402,702,827.81/22,930.80
  6. Step 6: Final answer
    x = 17,561.66

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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.