Home / 20,680.24-31,047.90-10,827.40

Finding the Fourth Proportional to 20,680.24, 31,047.90 and 10,827.40

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Solution

The fourth proportional to 20,680.24, 31,047.90 and 10,827.40 is: 16,255.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,680.24 : 31,047.90 = 10,827.40 : x
  2. Step 2: Convert to fraction form
    20,680.24/31,047.90 = 10,827.40/x
  3. Step 3: Cross multiply
    20,680.24x = 31,047.90 × 10,827.40
  4. Step 4: Simplify right side
    20,680.24x = 336,168,032.46
  5. Step 5: Solve for x
    x = 336,168,032.46/20,680.24
  6. Step 6: Final answer
    x = 16,255.52

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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.