Home / 39,254.99-54,171.35-21,349.61

Finding the Fourth Proportional to 39,254.99, 54,171.35 and 21,349.61

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Solution

The fourth proportional to 39,254.99, 54,171.35 and 21,349.61 is: 29,462.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,254.99 : 54,171.35 = 21,349.61 : x
  2. Step 2: Convert to fraction form
    39,254.99/54,171.35 = 21,349.61/x
  3. Step 3: Cross multiply
    39,254.99x = 54,171.35 × 21,349.61
  4. Step 4: Simplify right side
    39,254.99x = 1,156,537,195.67
  5. Step 5: Solve for x
    x = 1,156,537,195.67/39,254.99
  6. Step 6: Final answer
    x = 29,462.17

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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.