Home / 31,017.13-42,803.24-16,869.97

Finding the Fourth Proportional to 31,017.13, 42,803.24 and 16,869.97

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Solution

The fourth proportional to 31,017.13, 42,803.24 and 16,869.97 is: 23,280.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,017.13 : 42,803.24 = 16,869.97 : x
  2. Step 2: Convert to fraction form
    31,017.13/42,803.24 = 16,869.97/x
  3. Step 3: Cross multiply
    31,017.13x = 42,803.24 × 16,869.97
  4. Step 4: Simplify right side
    31,017.13x = 722,089,343.86
  5. Step 5: Solve for x
    x = 722,089,343.86/31,017.13
  6. Step 6: Final answer
    x = 23,280.34

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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.