Home / 23,140.85-31,934.49-12,530.53

Finding the Fourth Proportional to 23,140.85, 31,934.49 and 12,530.53

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Solution

The fourth proportional to 23,140.85, 31,934.49 and 12,530.53 is: 17,292.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,140.85 : 31,934.49 = 12,530.53 : x
  2. Step 2: Convert to fraction form
    23,140.85/31,934.49 = 12,530.53/x
  3. Step 3: Cross multiply
    23,140.85x = 31,934.49 × 12,530.53
  4. Step 4: Simplify right side
    23,140.85x = 400,155,925.31
  5. Step 5: Solve for x
    x = 400,155,925.31/23,140.85
  6. Step 6: Final answer
    x = 17,292.19

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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.