Home / 27,888.84-38,477.12-15,943.72

Finding the Fourth Proportional to 27,888.84, 38,477.12 and 15,943.72

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Solution

The fourth proportional to 27,888.84, 38,477.12 and 15,943.72 is: 21,996.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,888.84 : 38,477.12 = 15,943.72 : x
  2. Step 2: Convert to fraction form
    27,888.84/38,477.12 = 15,943.72/x
  3. Step 3: Cross multiply
    27,888.84x = 38,477.12 × 15,943.72
  4. Step 4: Simplify right side
    27,888.84x = 613,468,427.69
  5. Step 5: Solve for x
    x = 613,468,427.69/27,888.84
  6. Step 6: Final answer
    x = 21,996.91

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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.