Home / 19,642.52-27,088.07-15,159.17

Finding the Fourth Proportional to 19,642.52, 27,088.07 and 15,159.17

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Solution

The fourth proportional to 19,642.52, 27,088.07 and 15,159.17 is: 20,905.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,642.52 : 27,088.07 = 15,159.17 : x
  2. Step 2: Convert to fraction form
    19,642.52/27,088.07 = 15,159.17/x
  3. Step 3: Cross multiply
    19,642.52x = 27,088.07 × 15,159.17
  4. Step 4: Simplify right side
    19,642.52x = 410,632,446.87
  5. Step 5: Solve for x
    x = 410,632,446.87/19,642.52
  6. Step 6: Final answer
    x = 20,905.29

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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.