Home / 27,018.77-37,282.23-15,686.47

Finding the Fourth Proportional to 27,018.77, 37,282.23 and 15,686.47

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Solution

The fourth proportional to 27,018.77, 37,282.23 and 15,686.47 is: 21,645.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,018.77 : 37,282.23 = 15,686.47 : x
  2. Step 2: Convert to fraction form
    27,018.77/37,282.23 = 15,686.47/x
  3. Step 3: Cross multiply
    27,018.77x = 37,282.23 × 15,686.47
  4. Step 4: Simplify right side
    27,018.77x = 584,826,582.43
  5. Step 5: Solve for x
    x = 584,826,582.43/27,018.77
  6. Step 6: Final answer
    x = 21,645.20

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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.