Home / 39,732.95-54,831.30-21,829.07

Finding the Fourth Proportional to 39,732.95, 54,831.30 and 21,829.07

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Solution

The fourth proportional to 39,732.95, 54,831.30 and 21,829.07 is: 30,124.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,732.95 : 54,831.30 = 21,829.07 : x
  2. Step 2: Convert to fraction form
    39,732.95/54,831.30 = 21,829.07/x
  3. Step 3: Cross multiply
    39,732.95x = 54,831.30 × 21,829.07
  4. Step 4: Simplify right side
    39,732.95x = 1,196,916,285.89
  5. Step 5: Solve for x
    x = 1,196,916,285.89/39,732.95
  6. Step 6: Final answer
    x = 30,124.02

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.