Home / 28,148-38,844.24-15,573.56

Finding the Fourth Proportional to 28,148, 38,844.24 and 15,573.56

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Solution

The fourth proportional to 28,148, 38,844.24 and 15,573.56 is: 21,491.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,148 : 38,844.24 = 15,573.56 : x
  2. Step 2: Convert to fraction form
    28,148/38,844.24 = 15,573.56/x
  3. Step 3: Cross multiply
    28,148x = 38,844.24 × 15,573.56
  4. Step 4: Simplify right side
    28,148x = 604,943,102.29
  5. Step 5: Solve for x
    x = 604,943,102.29/28,148
  6. Step 6: Final answer
    x = 21,491.51

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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.