Home / 20,064.77-27,680.19-12,993.47

Finding the Fourth Proportional to 20,064.77, 27,680.19 and 12,993.47

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Solution

The fourth proportional to 20,064.77, 27,680.19 and 12,993.47 is: 17,925.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,064.77 : 27,680.19 = 12,993.47 : x
  2. Step 2: Convert to fraction form
    20,064.77/27,680.19 = 12,993.47/x
  3. Step 3: Cross multiply
    20,064.77x = 27,680.19 × 12,993.47
  4. Step 4: Simplify right side
    20,064.77x = 359,661,718.36
  5. Step 5: Solve for x
    x = 359,661,718.36/20,064.77
  6. Step 6: Final answer
    x = 17,925.04

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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.