Home / 27,918.36-38,526.30-15,981.39

Finding the Fourth Proportional to 27,918.36, 38,526.30 and 15,981.39

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Solution

The fourth proportional to 27,918.36, 38,526.30 and 15,981.39 is: 22,053.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,918.36 : 38,526.30 = 15,981.39 : x
  2. Step 2: Convert to fraction form
    27,918.36/38,526.30 = 15,981.39/x
  3. Step 3: Cross multiply
    27,918.36x = 38,526.30 × 15,981.39
  4. Step 4: Simplify right side
    27,918.36x = 615,703,825.56
  5. Step 5: Solve for x
    x = 615,703,825.56/27,918.36
  6. Step 6: Final answer
    x = 22,053.72

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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.