Home / 20,269.26-27,971.01-11,316.50

Finding the Fourth Proportional to 20,269.26, 27,971.01 and 11,316.50

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Solution

The fourth proportional to 20,269.26, 27,971.01 and 11,316.50 is: 15,616.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,269.26 : 27,971.01 = 11,316.50 : x
  2. Step 2: Convert to fraction form
    20,269.26/27,971.01 = 11,316.50/x
  3. Step 3: Cross multiply
    20,269.26x = 27,971.01 × 11,316.50
  4. Step 4: Simplify right side
    20,269.26x = 316,533,934.67
  5. Step 5: Solve for x
    x = 316,533,934.67/20,269.26
  6. Step 6: Final answer
    x = 15,616.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.