Home / 21,962.20-32,921.70-10,870.60

Finding the Fourth Proportional to 21,962.20, 32,921.70 and 10,870.60

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Solution

The fourth proportional to 21,962.20, 32,921.70 and 10,870.60 is: 16,295.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,962.20 : 32,921.70 = 10,870.60 : x
  2. Step 2: Convert to fraction form
    21,962.20/32,921.70 = 10,870.60/x
  3. Step 3: Cross multiply
    21,962.20x = 32,921.70 × 10,870.60
  4. Step 4: Simplify right side
    21,962.20x = 357,878,632.02
  5. Step 5: Solve for x
    x = 357,878,632.02/21,962.20
  6. Step 6: Final answer
    x = 16,295.21

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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.