Home / 22,670.40-31,269.60-22,255.68

Finding the Fourth Proportional to 22,670.40, 31,269.60 and 22,255.68

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Solution

The fourth proportional to 22,670.40, 31,269.60 and 22,255.68 is: 30,697.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,670.40 : 31,269.60 = 22,255.68 : x
  2. Step 2: Convert to fraction form
    22,670.40/31,269.60 = 22,255.68/x
  3. Step 3: Cross multiply
    22,670.40x = 31,269.60 × 22,255.68
  4. Step 4: Simplify right side
    22,670.40x = 695,926,211.33
  5. Step 5: Solve for x
    x = 695,926,211.33/22,670.40
  6. Step 6: Final answer
    x = 30,697.57

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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.