Home / 27,804.60-38,372.13-15,708.06

Finding the Fourth Proportional to 27,804.60, 38,372.13 and 15,708.06

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Solution

The fourth proportional to 27,804.60, 38,372.13 and 15,708.06 is: 21,678.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,804.60 : 38,372.13 = 15,708.06 : x
  2. Step 2: Convert to fraction form
    27,804.60/38,372.13 = 15,708.06/x
  3. Step 3: Cross multiply
    27,804.60x = 38,372.13 × 15,708.06
  4. Step 4: Simplify right side
    27,804.60x = 602,751,720.37
  5. Step 5: Solve for x
    x = 602,751,720.37/27,804.60
  6. Step 6: Final answer
    x = 21,678.13

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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.