Home / 20,417.52-30,636.66-9,322.74

Finding the Fourth Proportional to 20,417.52, 30,636.66 and 9,322.74

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Solution

The fourth proportional to 20,417.52, 30,636.66 and 9,322.74 is: 13,988.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,417.52 : 30,636.66 = 9,322.74 : x
  2. Step 2: Convert to fraction form
    20,417.52/30,636.66 = 9,322.74/x
  3. Step 3: Cross multiply
    20,417.52x = 30,636.66 × 9,322.74
  4. Step 4: Simplify right side
    20,417.52x = 285,617,615.65
  5. Step 5: Solve for x
    x = 285,617,615.65/20,417.52
  6. Step 6: Final answer
    x = 13,988.85

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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.