Home / 38,569.28-53,228.30-21,575.07

Finding the Fourth Proportional to 38,569.28, 53,228.30 and 21,575.07

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Solution

The fourth proportional to 38,569.28, 53,228.30 and 21,575.07 is: 29,775.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,569.28 : 53,228.30 = 21,575.07 : x
  2. Step 2: Convert to fraction form
    38,569.28/53,228.30 = 21,575.07/x
  3. Step 3: Cross multiply
    38,569.28x = 53,228.30 × 21,575.07
  4. Step 4: Simplify right side
    38,569.28x = 1,148,404,190.61
  5. Step 5: Solve for x
    x = 1,148,404,190.61/38,569.28
  6. Step 6: Final answer
    x = 29,775.10

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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.