Home / 15,926.40-21,920.40-14,025.56

Finding the Fourth Proportional to 15,926.40, 21,920.40 and 14,025.56

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Solution

The fourth proportional to 15,926.40, 21,920.40 and 14,025.56 is: 19,304.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,926.40 : 21,920.40 = 14,025.56 : x
  2. Step 2: Convert to fraction form
    15,926.40/21,920.40 = 14,025.56/x
  3. Step 3: Cross multiply
    15,926.40x = 21,920.40 × 14,025.56
  4. Step 4: Simplify right side
    15,926.40x = 307,445,775.82
  5. Step 5: Solve for x
    x = 307,445,775.82/15,926.40
  6. Step 6: Final answer
    x = 19,304.16

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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.