Home / 31,979.16-47,968.85-9,792.44

Finding the Fourth Proportional to 31,979.16, 47,968.85 and 9,792.44

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Solution

The fourth proportional to 31,979.16, 47,968.85 and 9,792.44 is: 14,688.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,979.16 : 47,968.85 = 9,792.44 : x
  2. Step 2: Convert to fraction form
    31,979.16/47,968.85 = 9,792.44/x
  3. Step 3: Cross multiply
    31,979.16x = 47,968.85 × 9,792.44
  4. Step 4: Simplify right side
    31,979.16x = 469,732,289.86
  5. Step 5: Solve for x
    x = 469,732,289.86/31,979.16
  6. Step 6: Final answer
    x = 14,688.70

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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.