Home / 42,550.10-63,831.90-12,961.07

Finding the Fourth Proportional to 42,550.10, 63,831.90 and 12,961.07

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Solution

The fourth proportional to 42,550.10, 63,831.90 and 12,961.07 is: 19,443.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,550.10 : 63,831.90 = 12,961.07 : x
  2. Step 2: Convert to fraction form
    42,550.10/63,831.90 = 12,961.07/x
  3. Step 3: Cross multiply
    42,550.10x = 63,831.90 × 12,961.07
  4. Step 4: Simplify right side
    42,550.10x = 827,329,724.13
  5. Step 5: Solve for x
    x = 827,329,724.13/42,550.10
  6. Step 6: Final answer
    x = 19,443.66

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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.