Home / 31,688.16-47,578.96-17,675.56

Finding the Fourth Proportional to 31,688.16, 47,578.96 and 17,675.56

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Solution

The fourth proportional to 31,688.16, 47,578.96 and 17,675.56 is: 26,539.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,688.16 : 47,578.96 = 17,675.56 : x
  2. Step 2: Convert to fraction form
    31,688.16/47,578.96 = 17,675.56/x
  3. Step 3: Cross multiply
    31,688.16x = 47,578.96 × 17,675.56
  4. Step 4: Simplify right side
    31,688.16x = 840,984,843.79
  5. Step 5: Solve for x
    x = 840,984,843.79/31,688.16
  6. Step 6: Final answer
    x = 26,539.41

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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.