Home / 20,700.10-31,051.20-5,911.18

Finding the Fourth Proportional to 20,700.10, 31,051.20 and 5,911.18

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Solution

The fourth proportional to 20,700.10, 31,051.20 and 5,911.18 is: 8,867.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,700.10 : 31,051.20 = 5,911.18 : x
  2. Step 2: Convert to fraction form
    20,700.10/31,051.20 = 5,911.18/x
  3. Step 3: Cross multiply
    20,700.10x = 31,051.20 × 5,911.18
  4. Step 4: Simplify right side
    20,700.10x = 183,549,232.42
  5. Step 5: Solve for x
    x = 183,549,232.42/20,700.10
  6. Step 6: Final answer
    x = 8,867.07

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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.