Home / 27,801.22-38,368.43-15,866.35

Finding the Fourth Proportional to 27,801.22, 38,368.43 and 15,866.35

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Solution

The fourth proportional to 27,801.22, 38,368.43 and 15,866.35 is: 21,897.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,801.22 : 38,368.43 = 15,866.35 : x
  2. Step 2: Convert to fraction form
    27,801.22/38,368.43 = 15,866.35/x
  3. Step 3: Cross multiply
    27,801.22x = 38,368.43 × 15,866.35
  4. Step 4: Simplify right side
    27,801.22x = 608,767,020.74
  5. Step 5: Solve for x
    x = 608,767,020.74/27,801.22
  6. Step 6: Final answer
    x = 21,897.13

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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.