Home / 27,738.84-38,283.58-15,803.30

Finding the Fourth Proportional to 27,738.84, 38,283.58 and 15,803.30

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Solution

The fourth proportional to 27,738.84, 38,283.58 and 15,803.30 is: 21,810.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,738.84 : 38,283.58 = 15,803.30 : x
  2. Step 2: Convert to fraction form
    27,738.84/38,283.58 = 15,803.30/x
  3. Step 3: Cross multiply
    27,738.84x = 38,283.58 × 15,803.30
  4. Step 4: Simplify right side
    27,738.84x = 605,006,899.81
  5. Step 5: Solve for x
    x = 605,006,899.81/27,738.84
  6. Step 6: Final answer
    x = 21,810.82

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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.