Home / 30,154.61-41,575.11-21,551.06

Finding the Fourth Proportional to 30,154.61, 41,575.11 and 21,551.06

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Solution

The fourth proportional to 30,154.61, 41,575.11 and 21,551.06 is: 29,713.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,154.61 : 41,575.11 = 21,551.06 : x
  2. Step 2: Convert to fraction form
    30,154.61/41,575.11 = 21,551.06/x
  3. Step 3: Cross multiply
    30,154.61x = 41,575.11 × 21,551.06
  4. Step 4: Simplify right side
    30,154.61x = 895,987,482.24
  5. Step 5: Solve for x
    x = 895,987,482.24/30,154.61
  6. Step 6: Final answer
    x = 29,713.12

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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.