Home / 27,838.95-38,417.37-15,901.98

Finding the Fourth Proportional to 27,838.95, 38,417.37 and 15,901.98

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Solution

The fourth proportional to 27,838.95, 38,417.37 and 15,901.98 is: 21,944.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,838.95 : 38,417.37 = 15,901.98 : x
  2. Step 2: Convert to fraction form
    27,838.95/38,417.37 = 15,901.98/x
  3. Step 3: Cross multiply
    27,838.95x = 38,417.37 × 15,901.98
  4. Step 4: Simplify right side
    27,838.95x = 610,912,249.39
  5. Step 5: Solve for x
    x = 610,912,249.39/27,838.95
  6. Step 6: Final answer
    x = 21,944.51

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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.