Home / 20,512.47-28,314.23-12,017.32

Finding the Fourth Proportional to 20,512.47, 28,314.23 and 12,017.32

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Solution

The fourth proportional to 20,512.47, 28,314.23 and 12,017.32 is: 16,588.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,512.47 : 28,314.23 = 12,017.32 : x
  2. Step 2: Convert to fraction form
    20,512.47/28,314.23 = 12,017.32/x
  3. Step 3: Cross multiply
    20,512.47x = 28,314.23 × 12,017.32
  4. Step 4: Simplify right side
    20,512.47x = 340,261,162.46
  5. Step 5: Solve for x
    x = 340,261,162.46/20,512.47
  6. Step 6: Final answer
    x = 16,588.02

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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.