Home / 27,275.84-37,639.28-15,338.46

Finding the Fourth Proportional to 27,275.84, 37,639.28 and 15,338.46

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Solution

The fourth proportional to 27,275.84, 37,639.28 and 15,338.46 is: 21,166.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,275.84 : 37,639.28 = 15,338.46 : x
  2. Step 2: Convert to fraction form
    27,275.84/37,639.28 = 15,338.46/x
  3. Step 3: Cross multiply
    27,275.84x = 37,639.28 × 15,338.46
  4. Step 4: Simplify right side
    27,275.84x = 577,328,770.20
  5. Step 5: Solve for x
    x = 577,328,770.20/27,275.84
  6. Step 6: Final answer
    x = 21,166.31

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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.