Home / 22,781.02-31,437.85-12,571.82

Finding the Fourth Proportional to 22,781.02, 31,437.85 and 12,571.82

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Solution

The fourth proportional to 22,781.02, 31,437.85 and 12,571.82 is: 17,349.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,781.02 : 31,437.85 = 12,571.82 : x
  2. Step 2: Convert to fraction form
    22,781.02/31,437.85 = 12,571.82/x
  3. Step 3: Cross multiply
    22,781.02x = 31,437.85 × 12,571.82
  4. Step 4: Simplify right side
    22,781.02x = 395,230,991.39
  5. Step 5: Solve for x
    x = 395,230,991.39/22,781.02
  6. Step 6: Final answer
    x = 17,349.13

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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.