Home / 20,984.16-31,465.38-6,191.20

Finding the Fourth Proportional to 20,984.16, 31,465.38 and 6,191.20

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Solution

The fourth proportional to 20,984.16, 31,465.38 and 6,191.20 is: 9,283.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,984.16 : 31,465.38 = 6,191.20 : x
  2. Step 2: Convert to fraction form
    20,984.16/31,465.38 = 6,191.20/x
  3. Step 3: Cross multiply
    20,984.16x = 31,465.38 × 6,191.20
  4. Step 4: Simplify right side
    20,984.16x = 194,808,460.66
  5. Step 5: Solve for x
    x = 194,808,460.66/20,984.16
  6. Step 6: Final answer
    x = 9,283.60

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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.