Home / 39,082.12-53,933.16-21,177.20

Finding the Fourth Proportional to 39,082.12, 53,933.16 and 21,177.20

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Solution

The fourth proportional to 39,082.12, 53,933.16 and 21,177.20 is: 29,224.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,082.12 : 53,933.16 = 21,177.20 : x
  2. Step 2: Convert to fraction form
    39,082.12/53,933.16 = 21,177.20/x
  3. Step 3: Cross multiply
    39,082.12x = 53,933.16 × 21,177.20
  4. Step 4: Simplify right side
    39,082.12x = 1,142,153,315.95
  5. Step 5: Solve for x
    x = 1,142,153,315.95/39,082.12
  6. Step 6: Final answer
    x = 29,224.45

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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.