Home / 31,579.92-47,374.56-10,513.08

Finding the Fourth Proportional to 31,579.92, 47,374.56 and 10,513.08

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Solution

The fourth proportional to 31,579.92, 47,374.56 and 10,513.08 is: 15,771.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,579.92 : 47,374.56 = 10,513.08 : x
  2. Step 2: Convert to fraction form
    31,579.92/47,374.56 = 10,513.08/x
  3. Step 3: Cross multiply
    31,579.92x = 47,374.56 × 10,513.08
  4. Step 4: Simplify right side
    31,579.92x = 498,052,539.24
  5. Step 5: Solve for x
    x = 498,052,539.24/31,579.92
  6. Step 6: Final answer
    x = 15,771.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.