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Finding the Fourth Proportional to 21,673.84, 32,510.76 and 8,532.40

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Solution

The fourth proportional to 21,673.84, 32,510.76 and 8,532.40 is: 12,798.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,673.84 : 32,510.76 = 8,532.40 : x
  2. Step 2: Convert to fraction form
    21,673.84/32,510.76 = 8,532.40/x
  3. Step 3: Cross multiply
    21,673.84x = 32,510.76 × 8,532.40
  4. Step 4: Simplify right side
    21,673.84x = 277,394,808.62
  5. Step 5: Solve for x
    x = 277,394,808.62/21,673.84
  6. Step 6: Final answer
    x = 12,798.60

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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.