Home / 20,248.65-27,931.42-12,176.68

Finding the Fourth Proportional to 20,248.65, 27,931.42 and 12,176.68

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Solution

The fourth proportional to 20,248.65, 27,931.42 and 12,176.68 is: 16,796.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,248.65 : 27,931.42 = 12,176.68 : x
  2. Step 2: Convert to fraction form
    20,248.65/27,931.42 = 12,176.68/x
  3. Step 3: Cross multiply
    20,248.65x = 27,931.42 × 12,176.68
  4. Step 4: Simplify right side
    20,248.65x = 340,111,963.29
  5. Step 5: Solve for x
    x = 340,111,963.29/20,248.65
  6. Step 6: Final answer
    x = 16,796.77

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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.