Home / 20,357.39-30,518.78-9,260.19

Finding the Fourth Proportional to 20,357.39, 30,518.78 and 9,260.19

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Solution

The fourth proportional to 20,357.39, 30,518.78 and 9,260.19 is: 13,882.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,357.39 : 30,518.78 = 9,260.19 : x
  2. Step 2: Convert to fraction form
    20,357.39/30,518.78 = 9,260.19/x
  3. Step 3: Cross multiply
    20,357.39x = 30,518.78 × 9,260.19
  4. Step 4: Simplify right side
    20,357.39x = 282,609,655.07
  5. Step 5: Solve for x
    x = 282,609,655.07/20,357.39
  6. Step 6: Final answer
    x = 13,882.41

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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.