Home / 28,580.50-39,416.73-22,601.78

Finding the Fourth Proportional to 28,580.50, 39,416.73 and 22,601.78

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Solution

The fourth proportional to 28,580.50, 39,416.73 and 22,601.78 is: 31,171.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,580.50 : 39,416.73 = 22,601.78 : x
  2. Step 2: Convert to fraction form
    28,580.50/39,416.73 = 22,601.78/x
  3. Step 3: Cross multiply
    28,580.50x = 39,416.73 × 22,601.78
  4. Step 4: Simplify right side
    28,580.50x = 890,888,347.47
  5. Step 5: Solve for x
    x = 890,888,347.47/28,580.50
  6. Step 6: Final answer
    x = 31,171.20

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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.