Home / 19,398.78-26,752.14-15,433.02

Finding the Fourth Proportional to 19,398.78, 26,752.14 and 15,433.02

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Solution

The fourth proportional to 19,398.78, 26,752.14 and 15,433.02 is: 21,283.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,398.78 : 26,752.14 = 15,433.02 : x
  2. Step 2: Convert to fraction form
    19,398.78/26,752.14 = 15,433.02/x
  3. Step 3: Cross multiply
    19,398.78x = 26,752.14 × 15,433.02
  4. Step 4: Simplify right side
    19,398.78x = 412,866,311.66
  5. Step 5: Solve for x
    x = 412,866,311.66/19,398.78
  6. Step 6: Final answer
    x = 21,283.11

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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.