Home / 31,001.58-42,785.53-17,571.40

Finding the Fourth Proportional to 31,001.58, 42,785.53 and 17,571.40

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Solution

The fourth proportional to 31,001.58, 42,785.53 and 17,571.40 is: 24,250.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,001.58 : 42,785.53 = 17,571.40 : x
  2. Step 2: Convert to fraction form
    31,001.58/42,785.53 = 17,571.40/x
  3. Step 3: Cross multiply
    31,001.58x = 42,785.53 × 17,571.40
  4. Step 4: Simplify right side
    31,001.58x = 751,801,510.95
  5. Step 5: Solve for x
    x = 751,801,510.95/31,001.58
  6. Step 6: Final answer
    x = 24,250.43

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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.