Home / 15,485.57-21,389.33-15,252.29

Finding the Fourth Proportional to 15,485.57, 21,389.33 and 15,252.29

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Solution

The fourth proportional to 15,485.57, 21,389.33 and 15,252.29 is: 21,067.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,485.57 : 21,389.33 = 15,252.29 : x
  2. Step 2: Convert to fraction form
    15,485.57/21,389.33 = 15,252.29/x
  3. Step 3: Cross multiply
    15,485.57x = 21,389.33 × 15,252.29
  4. Step 4: Simplify right side
    15,485.57x = 326,236,264.07
  5. Step 5: Solve for x
    x = 326,236,264.07/15,485.57
  6. Step 6: Final answer
    x = 21,067.11

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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.