Home / 38,394.15-52,988.21-21,399.95

Finding the Fourth Proportional to 38,394.15, 52,988.21 and 21,399.95

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Solution

The fourth proportional to 38,394.15, 52,988.21 and 21,399.95 is: 29,534.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,394.15 : 52,988.21 = 21,399.95 : x
  2. Step 2: Convert to fraction form
    38,394.15/52,988.21 = 21,399.95/x
  3. Step 3: Cross multiply
    38,394.15x = 52,988.21 × 21,399.95
  4. Step 4: Simplify right side
    38,394.15x = 1,133,944,833.15
  5. Step 5: Solve for x
    x = 1,133,944,833.15/38,394.15
  6. Step 6: Final answer
    x = 29,534.31

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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.