Home / 40,108.17-55,349.93-21,958.59

Finding the Fourth Proportional to 40,108.17, 55,349.93 and 21,958.59

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Solution

The fourth proportional to 40,108.17, 55,349.93 and 21,958.59 is: 30,303.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,108.17 : 55,349.93 = 21,958.59 : x
  2. Step 2: Convert to fraction form
    40,108.17/55,349.93 = 21,958.59/x
  3. Step 3: Cross multiply
    40,108.17x = 55,349.93 × 21,958.59
  4. Step 4: Simplify right side
    40,108.17x = 1,215,406,032.86
  5. Step 5: Solve for x
    x = 1,215,406,032.86/40,108.17
  6. Step 6: Final answer
    x = 30,303.21

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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.