Home / 31,589.05-47,406.43-12,357.63

Finding the Fourth Proportional to 31,589.05, 47,406.43 and 12,357.63

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Solution

The fourth proportional to 31,589.05, 47,406.43 and 12,357.63 is: 18,545.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,589.05 : 47,406.43 = 12,357.63 : x
  2. Step 2: Convert to fraction form
    31,589.05/47,406.43 = 12,357.63/x
  3. Step 3: Cross multiply
    31,589.05x = 47,406.43 × 12,357.63
  4. Step 4: Simplify right side
    31,589.05x = 585,831,308.96
  5. Step 5: Solve for x
    x = 585,831,308.96/31,589.05
  6. Step 6: Final answer
    x = 18,545.39

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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.