Home / 27,913.69-38,521.77-15,980.87

Finding the Fourth Proportional to 27,913.69, 38,521.77 and 15,980.87

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Solution

The fourth proportional to 27,913.69, 38,521.77 and 15,980.87 is: 22,054.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,913.69 : 38,521.77 = 15,980.87 : x
  2. Step 2: Convert to fraction form
    27,913.69/38,521.77 = 15,980.87/x
  3. Step 3: Cross multiply
    27,913.69x = 38,521.77 × 15,980.87
  4. Step 4: Simplify right side
    27,913.69x = 615,611,398.54
  5. Step 5: Solve for x
    x = 615,611,398.54/27,913.69
  6. Step 6: Final answer
    x = 22,054.10

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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.