Home / 39,082.86-53,934.41-21,178.02

Finding the Fourth Proportional to 39,082.86, 53,934.41 and 21,178.02

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Solution

The fourth proportional to 39,082.86, 53,934.41 and 21,178.02 is: 29,225.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,082.86 : 53,934.41 = 21,178.02 : x
  2. Step 2: Convert to fraction form
    39,082.86/53,934.41 = 21,178.02/x
  3. Step 3: Cross multiply
    39,082.86x = 53,934.41 × 21,178.02
  4. Step 4: Simplify right side
    39,082.86x = 1,142,224,013.67
  5. Step 5: Solve for x
    x = 1,142,224,013.67/39,082.86
  6. Step 6: Final answer
    x = 29,225.70

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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.