Home / 39,376.10-54,337.02-21,470.96

Finding the Fourth Proportional to 39,376.10, 54,337.02 and 21,470.96

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Solution

The fourth proportional to 39,376.10, 54,337.02 and 21,470.96 is: 29,628.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,376.10 : 54,337.02 = 21,470.96 : x
  2. Step 2: Convert to fraction form
    39,376.10/54,337.02 = 21,470.96/x
  3. Step 3: Cross multiply
    39,376.10x = 54,337.02 × 21,470.96
  4. Step 4: Simplify right side
    39,376.10x = 1,166,667,982.94
  5. Step 5: Solve for x
    x = 1,166,667,982.94/39,376.10
  6. Step 6: Final answer
    x = 29,628.84

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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.