Home / 28,877.76-39,873.87-22,152.75

Finding the Fourth Proportional to 28,877.76, 39,873.87 and 22,152.75

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Solution

The fourth proportional to 28,877.76, 39,873.87 and 22,152.75 is: 30,588.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,877.76 : 39,873.87 = 22,152.75 : x
  2. Step 2: Convert to fraction form
    28,877.76/39,873.87 = 22,152.75/x
  3. Step 3: Cross multiply
    28,877.76x = 39,873.87 × 22,152.75
  4. Step 4: Simplify right side
    28,877.76x = 883,315,873.64
  5. Step 5: Solve for x
    x = 883,315,873.64/28,877.76
  6. Step 6: Final answer
    x = 30,588.10

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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.