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Finding the Fourth Proportional to 15,836.80, 23,812.80 and 13,302.40

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Solution

The fourth proportional to 15,836.80, 23,812.80 and 13,302.40 is: 20,001.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,836.80 : 23,812.80 = 13,302.40 : x
  2. Step 2: Convert to fraction form
    15,836.80/23,812.80 = 13,302.40/x
  3. Step 3: Cross multiply
    15,836.80x = 23,812.80 × 13,302.40
  4. Step 4: Simplify right side
    15,836.80x = 316,767,390.72
  5. Step 5: Solve for x
    x = 316,767,390.72/15,836.80
  6. Step 6: Final answer
    x = 20,001.98

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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.