Home / 30,390-41,943.06-17,814.75

Finding the Fourth Proportional to 30,390, 41,943.06 and 17,814.75

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Solution

The fourth proportional to 30,390, 41,943.06 and 17,814.75 is: 24,587.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,390 : 41,943.06 = 17,814.75 : x
  2. Step 2: Convert to fraction form
    30,390/41,943.06 = 17,814.75/x
  3. Step 3: Cross multiply
    30,390x = 41,943.06 × 17,814.75
  4. Step 4: Simplify right side
    30,390x = 747,205,128.14
  5. Step 5: Solve for x
    x = 747,205,128.14/30,390
  6. Step 6: Final answer
    x = 24,587.20

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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.