Home / 31,589.04-47,341.58-13,792.80

Finding the Fourth Proportional to 31,589.04, 47,341.58 and 13,792.80

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Solution

The fourth proportional to 31,589.04, 47,341.58 and 13,792.80 is: 20,670.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,589.04 : 47,341.58 = 13,792.80 : x
  2. Step 2: Convert to fraction form
    31,589.04/47,341.58 = 13,792.80/x
  3. Step 3: Cross multiply
    31,589.04x = 47,341.58 × 13,792.80
  4. Step 4: Simplify right side
    31,589.04x = 652,972,944.62
  5. Step 5: Solve for x
    x = 652,972,944.62/31,589.04
  6. Step 6: Final answer
    x = 20,670.87

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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.