Home / 20,923.93-31,499.02-19,061.79

Finding the Fourth Proportional to 20,923.93, 31,499.02 and 19,061.79

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Solution

The fourth proportional to 20,923.93, 31,499.02 and 19,061.79 is: 28,695.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,923.93 : 31,499.02 = 19,061.79 : x
  2. Step 2: Convert to fraction form
    20,923.93/31,499.02 = 19,061.79/x
  3. Step 3: Cross multiply
    20,923.93x = 31,499.02 × 19,061.79
  4. Step 4: Simplify right side
    20,923.93x = 600,427,704.45
  5. Step 5: Solve for x
    x = 600,427,704.45/20,923.93
  6. Step 6: Final answer
    x = 28,695.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.