Home / 27,801.18-38,368.37-15,866.31

Finding the Fourth Proportional to 27,801.18, 38,368.37 and 15,866.31

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Solution

The fourth proportional to 27,801.18, 38,368.37 and 15,866.31 is: 21,897.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,801.18 : 38,368.37 = 15,866.31 : x
  2. Step 2: Convert to fraction form
    27,801.18/38,368.37 = 15,866.31/x
  3. Step 3: Cross multiply
    27,801.18x = 38,368.37 × 15,866.31
  4. Step 4: Simplify right side
    27,801.18x = 608,764,452.61
  5. Step 5: Solve for x
    x = 608,764,452.61/27,801.18
  6. Step 6: Final answer
    x = 21,897.07

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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.