Home / 40,278.06-55,582.17-22,374.21

Finding the Fourth Proportional to 40,278.06, 55,582.17 and 22,374.21

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Solution

The fourth proportional to 40,278.06, 55,582.17 and 22,374.21 is: 30,875.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,278.06 : 55,582.17 = 22,374.21 : x
  2. Step 2: Convert to fraction form
    40,278.06/55,582.17 = 22,374.21/x
  3. Step 3: Cross multiply
    40,278.06x = 55,582.17 × 22,374.21
  4. Step 4: Simplify right side
    40,278.06x = 1,243,607,143.84
  5. Step 5: Solve for x
    x = 1,243,607,143.84/40,278.06
  6. Step 6: Final answer
    x = 30,875.55

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1.5x scale

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.