Home / 40,110.71-55,353.47-21,962.93

Finding the Fourth Proportional to 40,110.71, 55,353.47 and 21,962.93

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Solution

The fourth proportional to 40,110.71, 55,353.47 and 21,962.93 is: 30,309.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,110.71 : 55,353.47 = 21,962.93 : x
  2. Step 2: Convert to fraction form
    40,110.71/55,353.47 = 21,962.93/x
  3. Step 3: Cross multiply
    40,110.71x = 55,353.47 × 21,962.93
  4. Step 4: Simplify right side
    40,110.71x = 1,215,724,000.29
  5. Step 5: Solve for x
    x = 1,215,724,000.29/40,110.71
  6. Step 6: Final answer
    x = 30,309.22

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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.