Home / 31,939.48-47,938.78-16,155.68

Finding the Fourth Proportional to 31,939.48, 47,938.78 and 16,155.68

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Solution

The fourth proportional to 31,939.48, 47,938.78 and 16,155.68 is: 24,248.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,939.48 : 47,938.78 = 16,155.68 : x
  2. Step 2: Convert to fraction form
    31,939.48/47,938.78 = 16,155.68/x
  3. Step 3: Cross multiply
    31,939.48x = 47,938.78 × 16,155.68
  4. Step 4: Simplify right side
    31,939.48x = 774,483,589.27
  5. Step 5: Solve for x
    x = 774,483,589.27/31,939.48
  6. Step 6: Final answer
    x = 24,248.48

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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.