Home / 28,962.92-39,972.20-17,639.05

Finding the Fourth Proportional to 28,962.92, 39,972.20 and 17,639.05

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Solution

The fourth proportional to 28,962.92, 39,972.20 and 17,639.05 is: 24,343.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,962.92 : 39,972.20 = 17,639.05 : x
  2. Step 2: Convert to fraction form
    28,962.92/39,972.20 = 17,639.05/x
  3. Step 3: Cross multiply
    28,962.92x = 39,972.20 × 17,639.05
  4. Step 4: Simplify right side
    28,962.92x = 705,071,596.18
  5. Step 5: Solve for x
    x = 705,071,596.18/28,962.92
  6. Step 6: Final answer
    x = 24,343.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.