Home / 19,427.31-26,809.42-10,929.40

Finding the Fourth Proportional to 19,427.31, 26,809.42 and 10,929.40

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Solution

The fourth proportional to 19,427.31, 26,809.42 and 10,929.40 is: 15,082.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,427.31 : 26,809.42 = 10,929.40 : x
  2. Step 2: Convert to fraction form
    19,427.31/26,809.42 = 10,929.40/x
  3. Step 3: Cross multiply
    19,427.31x = 26,809.42 × 10,929.40
  4. Step 4: Simplify right side
    19,427.31x = 293,010,874.95
  5. Step 5: Solve for x
    x = 293,010,874.95/19,427.31
  6. Step 6: Final answer
    x = 15,082.42

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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.