Home / 20,686.24-31,056.90-10,833.40

Finding the Fourth Proportional to 20,686.24, 31,056.90 and 10,833.40

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Solution

The fourth proportional to 20,686.24, 31,056.90 and 10,833.40 is: 16,264.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,686.24 : 31,056.90 = 10,833.40 : x
  2. Step 2: Convert to fraction form
    20,686.24/31,056.90 = 10,833.40/x
  3. Step 3: Cross multiply
    20,686.24x = 31,056.90 × 10,833.40
  4. Step 4: Simplify right side
    20,686.24x = 336,451,820.46
  5. Step 5: Solve for x
    x = 336,451,820.46/20,686.24
  6. Step 6: Final answer
    x = 16,264.52

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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.