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Finding the Fourth Proportional to 21,340.68, 32,011.02 and 7,300.84

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Solution

The fourth proportional to 21,340.68, 32,011.02 and 7,300.84 is: 10,951.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,340.68 : 32,011.02 = 7,300.84 : x
  2. Step 2: Convert to fraction form
    21,340.68/32,011.02 = 7,300.84/x
  3. Step 3: Cross multiply
    21,340.68x = 32,011.02 × 7,300.84
  4. Step 4: Simplify right side
    21,340.68x = 233,707,138.70
  5. Step 5: Solve for x
    x = 233,707,138.70/21,340.68
  6. Step 6: Final answer
    x = 10,951.25

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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.