Home / 42,994.20-64,492.92-11,831.88

Finding the Fourth Proportional to 42,994.20, 64,492.92 and 11,831.88

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Solution

The fourth proportional to 42,994.20, 64,492.92 and 11,831.88 is: 17,748.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,994.20 : 64,492.92 = 11,831.88 : x
  2. Step 2: Convert to fraction form
    42,994.20/64,492.92 = 11,831.88/x
  3. Step 3: Cross multiply
    42,994.20x = 64,492.92 × 11,831.88
  4. Step 4: Simplify right side
    42,994.20x = 763,072,490.29
  5. Step 5: Solve for x
    x = 763,072,490.29/42,994.20
  6. Step 6: Final answer
    x = 17,748.27

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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.