Home / 28,071.52-38,738.66-15,496.24

Finding the Fourth Proportional to 28,071.52, 38,738.66 and 15,496.24

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Solution

The fourth proportional to 28,071.52, 38,738.66 and 15,496.24 is: 21,384.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,071.52 : 38,738.66 = 15,496.24 : x
  2. Step 2: Convert to fraction form
    28,071.52/38,738.66 = 15,496.24/x
  3. Step 3: Cross multiply
    28,071.52x = 38,738.66 × 15,496.24
  4. Step 4: Simplify right side
    28,071.52x = 600,303,572.64
  5. Step 5: Solve for x
    x = 600,303,572.64/28,071.52
  6. Step 6: Final answer
    x = 21,384.79

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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.