Home / 48,831.50-73,248.06-21,129.50

Finding the Fourth Proportional to 48,831.50, 73,248.06 and 21,129.50

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Solution

The fourth proportional to 48,831.50, 73,248.06 and 21,129.50 is: 31,694.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,831.50 : 73,248.06 = 21,129.50 : x
  2. Step 2: Convert to fraction form
    48,831.50/73,248.06 = 21,129.50/x
  3. Step 3: Cross multiply
    48,831.50x = 73,248.06 × 21,129.50
  4. Step 4: Simplify right side
    48,831.50x = 1,547,694,883.77
  5. Step 5: Solve for x
    x = 1,547,694,883.77/48,831.50
  6. Step 6: Final answer
    x = 31,694.60

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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.