Home / 28,441.71-42,664.23-8,720.46

Finding the Fourth Proportional to 28,441.71, 42,664.23 and 8,720.46

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Solution

The fourth proportional to 28,441.71, 42,664.23 and 8,720.46 is: 13,081.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,441.71 : 42,664.23 = 8,720.46 : x
  2. Step 2: Convert to fraction form
    28,441.71/42,664.23 = 8,720.46/x
  3. Step 3: Cross multiply
    28,441.71x = 42,664.23 × 8,720.46
  4. Step 4: Simplify right side
    28,441.71x = 372,051,711.15
  5. Step 5: Solve for x
    x = 372,051,711.15/28,441.71
  6. Step 6: Final answer
    x = 13,081.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.