Home / 27,803.77-38,365.52-15,866.39

Finding the Fourth Proportional to 27,803.77, 38,365.52 and 15,866.39

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Solution

The fourth proportional to 27,803.77, 38,365.52 and 15,866.39 is: 21,893.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,803.77 : 38,365.52 = 15,866.39 : x
  2. Step 2: Convert to fraction form
    27,803.77/38,365.52 = 15,866.39/x
  3. Step 3: Cross multiply
    27,803.77x = 38,365.52 × 15,866.39
  4. Step 4: Simplify right side
    27,803.77x = 608,722,319.45
  5. Step 5: Solve for x
    x = 608,722,319.45/27,803.77
  6. Step 6: Final answer
    x = 21,893.52

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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.