Home / 21,773.15-30,048.93-13,275.74

Finding the Fourth Proportional to 21,773.15, 30,048.93 and 13,275.74

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Solution

The fourth proportional to 21,773.15, 30,048.93 and 13,275.74 is: 18,321.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,773.15 : 30,048.93 = 13,275.74 : x
  2. Step 2: Convert to fraction form
    21,773.15/30,048.93 = 13,275.74/x
  3. Step 3: Cross multiply
    21,773.15x = 30,048.93 × 13,275.74
  4. Step 4: Simplify right side
    21,773.15x = 398,921,781.96
  5. Step 5: Solve for x
    x = 398,921,781.96/21,773.15
  6. Step 6: Final answer
    x = 18,321.73

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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.