Home / 27,979.79-38,599.95-16,040.39

Finding the Fourth Proportional to 27,979.79, 38,599.95 and 16,040.39

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Solution

The fourth proportional to 27,979.79, 38,599.95 and 16,040.39 is: 22,128.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,979.79 : 38,599.95 = 16,040.39 : x
  2. Step 2: Convert to fraction form
    27,979.79/38,599.95 = 16,040.39/x
  3. Step 3: Cross multiply
    27,979.79x = 38,599.95 × 16,040.39
  4. Step 4: Simplify right side
    27,979.79x = 619,158,058.98
  5. Step 5: Solve for x
    x = 619,158,058.98/27,979.79
  6. Step 6: Final answer
    x = 22,128.76

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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.