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Finding the Fourth Proportional to 21,597.60, 32,396.34 and 6,807.80

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Solution

The fourth proportional to 21,597.60, 32,396.34 and 6,807.80 is: 10,211.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,597.60 : 32,396.34 = 6,807.80 : x
  2. Step 2: Convert to fraction form
    21,597.60/32,396.34 = 6,807.80/x
  3. Step 3: Cross multiply
    21,597.60x = 32,396.34 × 6,807.80
  4. Step 4: Simplify right side
    21,597.60x = 220,547,803.45
  5. Step 5: Solve for x
    x = 220,547,803.45/21,597.60
  6. Step 6: Final answer
    x = 10,211.68

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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.