Home / 15,707.58-21,681.52-10,057.54

Finding the Fourth Proportional to 15,707.58, 21,681.52 and 10,057.54

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Solution

The fourth proportional to 15,707.58, 21,681.52 and 10,057.54 is: 13,882.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,707.58 : 21,681.52 = 10,057.54 : x
  2. Step 2: Convert to fraction form
    15,707.58/21,681.52 = 10,057.54/x
  3. Step 3: Cross multiply
    15,707.58x = 21,681.52 × 10,057.54
  4. Step 4: Simplify right side
    15,707.58x = 218,062,754.66
  5. Step 5: Solve for x
    x = 218,062,754.66/15,707.58
  6. Step 6: Final answer
    x = 13,882.64

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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.