Home / 42,831.48-64,247.04-19,132.92

Finding the Fourth Proportional to 42,831.48, 64,247.04 and 19,132.92

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Solution

The fourth proportional to 42,831.48, 64,247.04 and 19,132.92 is: 28,699.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,831.48 : 64,247.04 = 19,132.92 : x
  2. Step 2: Convert to fraction form
    42,831.48/64,247.04 = 19,132.92/x
  3. Step 3: Cross multiply
    42,831.48x = 64,247.04 × 19,132.92
  4. Step 4: Simplify right side
    42,831.48x = 1,229,233,476.56
  5. Step 5: Solve for x
    x = 1,229,233,476.56/42,831.48
  6. Step 6: Final answer
    x = 28,699.30

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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.