Home / 43,221.32-64,831.98-13,641.47

Finding the Fourth Proportional to 43,221.32, 64,831.98 and 13,641.47

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Solution

The fourth proportional to 43,221.32, 64,831.98 and 13,641.47 is: 20,462.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,221.32 : 64,831.98 = 13,641.47 : x
  2. Step 2: Convert to fraction form
    43,221.32/64,831.98 = 13,641.47/x
  3. Step 3: Cross multiply
    43,221.32x = 64,831.98 × 13,641.47
  4. Step 4: Simplify right side
    43,221.32x = 884,403,510.21
  5. Step 5: Solve for x
    x = 884,403,510.21/43,221.32
  6. Step 6: Final answer
    x = 20,462.21

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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.