Home / 19,625.94-27,055.17-15,426.90

Finding the Fourth Proportional to 19,625.94, 27,055.17 and 15,426.90

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Solution

The fourth proportional to 19,625.94, 27,055.17 and 15,426.90 is: 21,266.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,625.94 : 27,055.17 = 15,426.90 : x
  2. Step 2: Convert to fraction form
    19,625.94/27,055.17 = 15,426.90/x
  3. Step 3: Cross multiply
    19,625.94x = 27,055.17 × 15,426.90
  4. Step 4: Simplify right side
    19,625.94x = 417,377,402.07
  5. Step 5: Solve for x
    x = 417,377,402.07/19,625.94
  6. Step 6: Final answer
    x = 21,266.62

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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.