Home / 31,931.75-44,065.82-18,510.80

Finding the Fourth Proportional to 31,931.75, 44,065.82 and 18,510.80

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Solution

The fourth proportional to 31,931.75, 44,065.82 and 18,510.80 is: 25,544.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,931.75 : 44,065.82 = 18,510.80 : x
  2. Step 2: Convert to fraction form
    31,931.75/44,065.82 = 18,510.80/x
  3. Step 3: Cross multiply
    31,931.75x = 44,065.82 × 18,510.80
  4. Step 4: Simplify right side
    31,931.75x = 815,693,406.80
  5. Step 5: Solve for x
    x = 815,693,406.80/31,931.75
  6. Step 6: Final answer
    x = 25,544.90

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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.