Home / 38,667.72-57,987.35-13,360.79

Finding the Fourth Proportional to 38,667.72, 57,987.35 and 13,360.79

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Solution

The fourth proportional to 38,667.72, 57,987.35 and 13,360.79 is: 20,036.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,667.72 : 57,987.35 = 13,360.79 : x
  2. Step 2: Convert to fraction form
    38,667.72/57,987.35 = 13,360.79/x
  3. Step 3: Cross multiply
    38,667.72x = 57,987.35 × 13,360.79
  4. Step 4: Simplify right side
    38,667.72x = 774,756,449.27
  5. Step 5: Solve for x
    x = 774,756,449.27/38,667.72
  6. Step 6: Final answer
    x = 20,036.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.