Home / 15,478.92-23,216.22-5,620.68

Finding the Fourth Proportional to 15,478.92, 23,216.22 and 5,620.68

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Solution

The fourth proportional to 15,478.92, 23,216.22 and 5,620.68 is: 8,430.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,478.92 : 23,216.22 = 5,620.68 : x
  2. Step 2: Convert to fraction form
    15,478.92/23,216.22 = 5,620.68/x
  3. Step 3: Cross multiply
    15,478.92x = 23,216.22 × 5,620.68
  4. Step 4: Simplify right side
    15,478.92x = 130,490,943.43
  5. Step 5: Solve for x
    x = 130,490,943.43/15,478.92
  6. Step 6: Final answer
    x = 8,430.24

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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.