Home / 15,345.54-22,981.34-10,400.20

Finding the Fourth Proportional to 15,345.54, 22,981.34 and 10,400.20

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Solution

The fourth proportional to 15,345.54, 22,981.34 and 10,400.20 is: 15,575.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,345.54 : 22,981.34 = 10,400.20 : x
  2. Step 2: Convert to fraction form
    15,345.54/22,981.34 = 10,400.20/x
  3. Step 3: Cross multiply
    15,345.54x = 22,981.34 × 10,400.20
  4. Step 4: Simplify right side
    15,345.54x = 239,010,500.82
  5. Step 5: Solve for x
    x = 239,010,500.82/15,345.54
  6. Step 6: Final answer
    x = 15,575.24

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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.