Home / 20,856.15-31,286.25-6,064.74

Finding the Fourth Proportional to 20,856.15, 31,286.25 and 6,064.74

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Solution

The fourth proportional to 20,856.15, 31,286.25 and 6,064.74 is: 9,097.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,856.15 : 31,286.25 = 6,064.74 : x
  2. Step 2: Convert to fraction form
    20,856.15/31,286.25 = 6,064.74/x
  3. Step 3: Cross multiply
    20,856.15x = 31,286.25 × 6,064.74
  4. Step 4: Simplify right side
    20,856.15x = 189,742,971.83
  5. Step 5: Solve for x
    x = 189,742,971.83/20,856.15
  6. Step 6: Final answer
    x = 9,097.70

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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.