Home / 38,390.18-52,977.56-21,394.34

Finding the Fourth Proportional to 38,390.18, 52,977.56 and 21,394.34

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Solution

The fourth proportional to 38,390.18, 52,977.56 and 21,394.34 is: 29,523.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,390.18 : 52,977.56 = 21,394.34 : x
  2. Step 2: Convert to fraction form
    38,390.18/52,977.56 = 21,394.34/x
  3. Step 3: Cross multiply
    38,390.18x = 52,977.56 × 21,394.34
  4. Step 4: Simplify right side
    38,390.18x = 1,133,419,931.01
  5. Step 5: Solve for x
    x = 1,133,419,931.01/38,390.18
  6. Step 6: Final answer
    x = 29,523.69

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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.