Home / 20,666.61-30,999.71-5,084.24

Finding the Fourth Proportional to 20,666.61, 30,999.71 and 5,084.24

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Solution

The fourth proportional to 20,666.61, 30,999.71 and 5,084.24 is: 7,626.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,666.61 : 30,999.71 = 5,084.24 : x
  2. Step 2: Convert to fraction form
    20,666.61/30,999.71 = 5,084.24/x
  3. Step 3: Cross multiply
    20,666.61x = 30,999.71 × 5,084.24
  4. Step 4: Simplify right side
    20,666.61x = 157,609,823.28
  5. Step 5: Solve for x
    x = 157,609,823.28/20,666.61
  6. Step 6: Final answer
    x = 7,626.30

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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.