Home / 20,360.81-30,547.59-6,129.85

Finding the Fourth Proportional to 20,360.81, 30,547.59 and 6,129.85

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Solution

The fourth proportional to 20,360.81, 30,547.59 and 6,129.85 is: 9,196.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,360.81 : 30,547.59 = 6,129.85 : x
  2. Step 2: Convert to fraction form
    20,360.81/30,547.59 = 6,129.85/x
  3. Step 3: Cross multiply
    20,360.81x = 30,547.59 × 6,129.85
  4. Step 4: Simplify right side
    20,360.81x = 187,251,961.17
  5. Step 5: Solve for x
    x = 187,251,961.17/20,360.81
  6. Step 6: Final answer
    x = 9,196.69

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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.