Home / 28,604.23-39,475.38-15,857.13

Finding the Fourth Proportional to 28,604.23, 39,475.38 and 15,857.13

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Solution

The fourth proportional to 28,604.23, 39,475.38 and 15,857.13 is: 21,883.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,604.23 : 39,475.38 = 15,857.13 : x
  2. Step 2: Convert to fraction form
    28,604.23/39,475.38 = 15,857.13/x
  3. Step 3: Cross multiply
    28,604.23x = 39,475.38 × 15,857.13
  4. Step 4: Simplify right side
    28,604.23x = 625,966,232.46
  5. Step 5: Solve for x
    x = 625,966,232.46/28,604.23
  6. Step 6: Final answer
    x = 21,883.69

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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.