Home / 40,026.68-55,236.98-21,877.76

Finding the Fourth Proportional to 40,026.68, 55,236.98 and 21,877.76

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Solution

The fourth proportional to 40,026.68, 55,236.98 and 21,877.76 is: 30,191.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,026.68 : 55,236.98 = 21,877.76 : x
  2. Step 2: Convert to fraction form
    40,026.68/55,236.98 = 21,877.76/x
  3. Step 3: Cross multiply
    40,026.68x = 55,236.98 × 21,877.76
  4. Step 4: Simplify right side
    40,026.68x = 1,208,461,584.35
  5. Step 5: Solve for x
    x = 1,208,461,584.35/40,026.68
  6. Step 6: Final answer
    x = 30,191.40

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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.