Home / 30,008.22-45,010.17-13,142.94

Finding the Fourth Proportional to 30,008.22, 45,010.17 and 13,142.94

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Solution

The fourth proportional to 30,008.22, 45,010.17 and 13,142.94 is: 19,713.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,008.22 : 45,010.17 = 13,142.94 : x
  2. Step 2: Convert to fraction form
    30,008.22/45,010.17 = 13,142.94/x
  3. Step 3: Cross multiply
    30,008.22x = 45,010.17 × 13,142.94
  4. Step 4: Simplify right side
    30,008.22x = 591,565,963.70
  5. Step 5: Solve for x
    x = 591,565,963.70/30,008.22
  6. Step 6: Final answer
    x = 19,713.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.