Home / 38,454.33-53,064.94-21,686.25

Finding the Fourth Proportional to 38,454.33, 53,064.94 and 21,686.25

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Solution

The fourth proportional to 38,454.33, 53,064.94 and 21,686.25 is: 29,925.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,454.33 : 53,064.94 = 21,686.25 : x
  2. Step 2: Convert to fraction form
    38,454.33/53,064.94 = 21,686.25/x
  3. Step 3: Cross multiply
    38,454.33x = 53,064.94 × 21,686.25
  4. Step 4: Simplify right side
    38,454.33x = 1,150,779,555.08
  5. Step 5: Solve for x
    x = 1,150,779,555.08/38,454.33
  6. Step 6: Final answer
    x = 29,925.88

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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.