Home / 20,030.52-27,641.61-11,077.80

Finding the Fourth Proportional to 20,030.52, 27,641.61 and 11,077.80

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Solution

The fourth proportional to 20,030.52, 27,641.61 and 11,077.80 is: 15,287.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,030.52 : 27,641.61 = 11,077.80 : x
  2. Step 2: Convert to fraction form
    20,030.52/27,641.61 = 11,077.80/x
  3. Step 3: Cross multiply
    20,030.52x = 27,641.61 × 11,077.80
  4. Step 4: Simplify right side
    20,030.52x = 306,208,227.26
  5. Step 5: Solve for x
    x = 306,208,227.26/20,030.52
  6. Step 6: Final answer
    x = 15,287.08

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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.