Home / 27,715.46-38,247.27-15,140.30

Finding the Fourth Proportional to 27,715.46, 38,247.27 and 15,140.30

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Solution

The fourth proportional to 27,715.46, 38,247.27 and 15,140.30 is: 20,893.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,715.46 : 38,247.27 = 15,140.30 : x
  2. Step 2: Convert to fraction form
    27,715.46/38,247.27 = 15,140.30/x
  3. Step 3: Cross multiply
    27,715.46x = 38,247.27 × 15,140.30
  4. Step 4: Simplify right side
    27,715.46x = 579,075,141.98
  5. Step 5: Solve for x
    x = 579,075,141.98/27,715.46
  6. Step 6: Final answer
    x = 20,893.58

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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.