Home / 39,376.85-54,339.33-21,471.47

Finding the Fourth Proportional to 39,376.85, 54,339.33 and 21,471.47

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Solution

The fourth proportional to 39,376.85, 54,339.33 and 21,471.47 is: 29,630.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,376.85 : 54,339.33 = 21,471.47 : x
  2. Step 2: Convert to fraction form
    39,376.85/54,339.33 = 21,471.47/x
  3. Step 3: Cross multiply
    39,376.85x = 54,339.33 × 21,471.47
  4. Step 4: Simplify right side
    39,376.85x = 1,166,745,306.51
  5. Step 5: Solve for x
    x = 1,166,745,306.51/39,376.85
  6. Step 6: Final answer
    x = 29,630.24

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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.