Home / 40,018.31-60,009.87-21,293.89

Finding the Fourth Proportional to 40,018.31, 60,009.87 and 21,293.89

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Solution

The fourth proportional to 40,018.31, 60,009.87 and 21,293.89 is: 31,931.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,018.31 : 60,009.87 = 21,293.89 : x
  2. Step 2: Convert to fraction form
    40,018.31/60,009.87 = 21,293.89/x
  3. Step 3: Cross multiply
    40,018.31x = 60,009.87 × 21,293.89
  4. Step 4: Simplify right side
    40,018.31x = 1,277,843,838.08
  5. Step 5: Solve for x
    x = 1,277,843,838.08/40,018.31
  6. Step 6: Final answer
    x = 31,931.48

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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.