Home / 22,691.48-31,315.02-13,259.84

Finding the Fourth Proportional to 22,691.48, 31,315.02 and 13,259.84

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Solution

The fourth proportional to 22,691.48, 31,315.02 and 13,259.84 is: 18,299.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,691.48 : 31,315.02 = 13,259.84 : x
  2. Step 2: Convert to fraction form
    22,691.48/31,315.02 = 13,259.84/x
  3. Step 3: Cross multiply
    22,691.48x = 31,315.02 × 13,259.84
  4. Step 4: Simplify right side
    22,691.48x = 415,232,154.80
  5. Step 5: Solve for x
    x = 415,232,154.80/22,691.48
  6. Step 6: Final answer
    x = 18,299.03

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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.