Home / 27,677.36-38,193.60-15,739.04

Finding the Fourth Proportional to 27,677.36, 38,193.60 and 15,739.04

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Solution

The fourth proportional to 27,677.36, 38,193.60 and 15,739.04 is: 21,719.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,677.36 : 38,193.60 = 15,739.04 : x
  2. Step 2: Convert to fraction form
    27,677.36/38,193.60 = 15,739.04/x
  3. Step 3: Cross multiply
    27,677.36x = 38,193.60 × 15,739.04
  4. Step 4: Simplify right side
    27,677.36x = 601,130,598.14
  5. Step 5: Solve for x
    x = 601,130,598.14/27,677.36
  6. Step 6: Final answer
    x = 21,719.22

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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.