Home / 28,487.52-39,313.56-15,913.08

Finding the Fourth Proportional to 28,487.52, 39,313.56 and 15,913.08

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Solution

The fourth proportional to 28,487.52, 39,313.56 and 15,913.08 is: 21,960.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,487.52 : 39,313.56 = 15,913.08 : x
  2. Step 2: Convert to fraction form
    28,487.52/39,313.56 = 15,913.08/x
  3. Step 3: Cross multiply
    28,487.52x = 39,313.56 × 15,913.08
  4. Step 4: Simplify right side
    28,487.52x = 625,599,825.36
  5. Step 5: Solve for x
    x = 625,599,825.36/28,487.52
  6. Step 6: Final answer
    x = 21,960.49

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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.