Home / 27,969.60-38,598-15,394.35

Finding the Fourth Proportional to 27,969.60, 38,598 and 15,394.35

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Solution

The fourth proportional to 27,969.60, 38,598 and 15,394.35 is: 21,244.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,969.60 : 38,598 = 15,394.35 : x
  2. Step 2: Convert to fraction form
    27,969.60/38,598 = 15,394.35/x
  3. Step 3: Cross multiply
    27,969.60x = 38,598 × 15,394.35
  4. Step 4: Simplify right side
    27,969.60x = 594,191,121.30
  5. Step 5: Solve for x
    x = 594,191,121.30/27,969.60
  6. Step 6: Final answer
    x = 21,244.18

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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.