Home / 21,478.35-32,230.08-8,997.32

Finding the Fourth Proportional to 21,478.35, 32,230.08 and 8,997.32

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Solution

The fourth proportional to 21,478.35, 32,230.08 and 8,997.32 is: 13,501.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,478.35 : 32,230.08 = 8,997.32 : x
  2. Step 2: Convert to fraction form
    21,478.35/32,230.08 = 8,997.32/x
  3. Step 3: Cross multiply
    21,478.35x = 32,230.08 × 8,997.32
  4. Step 4: Simplify right side
    21,478.35x = 289,984,182.24
  5. Step 5: Solve for x
    x = 289,984,182.24/21,478.35
  6. Step 6: Final answer
    x = 13,501.23

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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.