Home / 42,017.45-57,981.34-23,154.57

Finding the Fourth Proportional to 42,017.45, 57,981.34 and 23,154.57

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Solution

The fourth proportional to 42,017.45, 57,981.34 and 23,154.57 is: 31,951.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,017.45 : 57,981.34 = 23,154.57 : x
  2. Step 2: Convert to fraction form
    42,017.45/57,981.34 = 23,154.57/x
  3. Step 3: Cross multiply
    42,017.45x = 57,981.34 × 23,154.57
  4. Step 4: Simplify right side
    42,017.45x = 1,342,532,995.72
  5. Step 5: Solve for x
    x = 1,342,532,995.72/42,017.45
  6. Step 6: Final answer
    x = 31,951.80

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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.