Home / 20,767.08-31,150.64-5,184.71

Finding the Fourth Proportional to 20,767.08, 31,150.64 and 5,184.71

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Solution

The fourth proportional to 20,767.08, 31,150.64 and 5,184.71 is: 7,777.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,767.08 : 31,150.64 = 5,184.71 : x
  2. Step 2: Convert to fraction form
    20,767.08/31,150.64 = 5,184.71/x
  3. Step 3: Cross multiply
    20,767.08x = 31,150.64 × 5,184.71
  4. Step 4: Simplify right side
    20,767.08x = 161,506,853.04
  5. Step 5: Solve for x
    x = 161,506,853.04/20,767.08
  6. Step 6: Final answer
    x = 7,777.06

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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.