Home / 21,074.16-31,627.02-9,984.04

Finding the Fourth Proportional to 21,074.16, 31,627.02 and 9,984.04

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Solution

The fourth proportional to 21,074.16, 31,627.02 and 9,984.04 is: 14,983.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,074.16 : 31,627.02 = 9,984.04 : x
  2. Step 2: Convert to fraction form
    21,074.16/31,627.02 = 9,984.04/x
  3. Step 3: Cross multiply
    21,074.16x = 31,627.02 × 9,984.04
  4. Step 4: Simplify right side
    21,074.16x = 315,765,432.76
  5. Step 5: Solve for x
    x = 315,765,432.76/21,074.16
  6. Step 6: Final answer
    x = 14,983.54

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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.