Home / 20,358.95-30,539.91-6,317.20

Finding the Fourth Proportional to 20,358.95, 30,539.91 and 6,317.20

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Solution

The fourth proportional to 20,358.95, 30,539.91 and 6,317.20 is: 9,476.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,358.95 : 30,539.91 = 6,317.20 : x
  2. Step 2: Convert to fraction form
    20,358.95/30,539.91 = 6,317.20/x
  3. Step 3: Cross multiply
    20,358.95x = 30,539.91 × 6,317.20
  4. Step 4: Simplify right side
    20,358.95x = 192,926,719.45
  5. Step 5: Solve for x
    x = 192,926,719.45/20,358.95
  6. Step 6: Final answer
    x = 9,476.26

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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.