Home / 38,394.28-52,988.42-21,400.07

Finding the Fourth Proportional to 38,394.28, 52,988.42 and 21,400.07

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Solution

The fourth proportional to 38,394.28, 52,988.42 and 21,400.07 is: 29,534.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,394.28 : 52,988.42 = 21,400.07 : x
  2. Step 2: Convert to fraction form
    38,394.28/52,988.42 = 21,400.07/x
  3. Step 3: Cross multiply
    38,394.28x = 52,988.42 × 21,400.07
  4. Step 4: Simplify right side
    38,394.28x = 1,133,955,922.66
  5. Step 5: Solve for x
    x = 1,133,955,922.66/38,394.28
  6. Step 6: Final answer
    x = 29,534.50

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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.