Home / 27,321.04-37,713.60-21,354.64

Finding the Fourth Proportional to 27,321.04, 37,713.60 and 21,354.64

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Solution

The fourth proportional to 27,321.04, 37,713.60 and 21,354.64 is: 29,477.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,321.04 : 37,713.60 = 21,354.64 : x
  2. Step 2: Convert to fraction form
    27,321.04/37,713.60 = 21,354.64/x
  3. Step 3: Cross multiply
    27,321.04x = 37,713.60 × 21,354.64
  4. Step 4: Simplify right side
    27,321.04x = 805,360,351.10
  5. Step 5: Solve for x
    x = 805,360,351.10/27,321.04
  6. Step 6: Final answer
    x = 29,477.66

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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.