Home / 38,648.14-53,338.73-21,655.15

Finding the Fourth Proportional to 38,648.14, 53,338.73 and 21,655.15

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Solution

The fourth proportional to 38,648.14, 53,338.73 and 21,655.15 is: 29,886.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,648.14 : 53,338.73 = 21,655.15 : x
  2. Step 2: Convert to fraction form
    38,648.14/53,338.73 = 21,655.15/x
  3. Step 3: Cross multiply
    38,648.14x = 53,338.73 × 21,655.15
  4. Step 4: Simplify right side
    38,648.14x = 1,155,058,253.10
  5. Step 5: Solve for x
    x = 1,155,058,253.10/38,648.14
  6. Step 6: Final answer
    x = 29,886.52

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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.