Home / 39,595.33-54,640.17-21,690.18

Finding the Fourth Proportional to 39,595.33, 54,640.17 and 21,690.18

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Solution

The fourth proportional to 39,595.33, 54,640.17 and 21,690.18 is: 29,931.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,595.33 : 54,640.17 = 21,690.18 : x
  2. Step 2: Convert to fraction form
    39,595.33/54,640.17 = 21,690.18/x
  3. Step 3: Cross multiply
    39,595.33x = 54,640.17 × 21,690.18
  4. Step 4: Simplify right side
    39,595.33x = 1,185,155,122.53
  5. Step 5: Solve for x
    x = 1,185,155,122.53/39,595.33
  6. Step 6: Final answer
    x = 29,931.69

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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.