Home / 20,962.94-31,434.30-9,860.24

Finding the Fourth Proportional to 20,962.94, 31,434.30 and 9,860.24

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Solution

The fourth proportional to 20,962.94, 31,434.30 and 9,860.24 is: 14,785.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,962.94 : 31,434.30 = 9,860.24 : x
  2. Step 2: Convert to fraction form
    20,962.94/31,434.30 = 9,860.24/x
  3. Step 3: Cross multiply
    20,962.94x = 31,434.30 × 9,860.24
  4. Step 4: Simplify right side
    20,962.94x = 309,949,742.23
  5. Step 5: Solve for x
    x = 309,949,742.23/20,962.94
  6. Step 6: Final answer
    x = 14,785.60

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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.