Home / 38,399.04-52,984.23-21,399.55

Finding the Fourth Proportional to 38,399.04, 52,984.23 and 21,399.55

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Solution

The fourth proportional to 38,399.04, 52,984.23 and 21,399.55 is: 29,527.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,399.04 : 52,984.23 = 21,399.55 : x
  2. Step 2: Convert to fraction form
    38,399.04/52,984.23 = 21,399.55/x
  3. Step 3: Cross multiply
    38,399.04x = 52,984.23 × 21,399.55
  4. Step 4: Simplify right side
    38,399.04x = 1,133,838,679.10
  5. Step 5: Solve for x
    x = 1,133,838,679.10/38,399.04
  6. Step 6: Final answer
    x = 29,527.79

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Double scale
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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.