Home / 19,929.36-27,502.71-10,976.90

Finding the Fourth Proportional to 19,929.36, 27,502.71 and 10,976.90

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Solution

The fourth proportional to 19,929.36, 27,502.71 and 10,976.90 is: 15,148.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,929.36 : 27,502.71 = 10,976.90 : x
  2. Step 2: Convert to fraction form
    19,929.36/27,502.71 = 10,976.90/x
  3. Step 3: Cross multiply
    19,929.36x = 27,502.71 × 10,976.90
  4. Step 4: Simplify right side
    19,929.36x = 301,894,387.48
  5. Step 5: Solve for x
    x = 301,894,387.48/19,929.36
  6. Step 6: Final answer
    x = 15,148.22

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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.