Home / 30,008.32-41,415-18,077.68

Finding the Fourth Proportional to 30,008.32, 41,415 and 18,077.68

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Solution

The fourth proportional to 30,008.32, 41,415 and 18,077.68 is: 24,949.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,008.32 : 41,415 = 18,077.68 : x
  2. Step 2: Convert to fraction form
    30,008.32/41,415 = 18,077.68/x
  3. Step 3: Cross multiply
    30,008.32x = 41,415 × 18,077.68
  4. Step 4: Simplify right side
    30,008.32x = 748,687,117.20
  5. Step 5: Solve for x
    x = 748,687,117.20/30,008.32
  6. Step 6: Final answer
    x = 24,949.32

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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.