Home / 37,814.80-56,722.20-31,909.90

Finding the Fourth Proportional to 37,814.80, 56,722.20 and 31,909.90

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Solution

The fourth proportional to 37,814.80, 56,722.20 and 31,909.90 is: 47,864.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,814.80 : 56,722.20 = 31,909.90 : x
  2. Step 2: Convert to fraction form
    37,814.80/56,722.20 = 31,909.90/x
  3. Step 3: Cross multiply
    37,814.80x = 56,722.20 × 31,909.90
  4. Step 4: Simplify right side
    37,814.80x = 1,809,999,729.78
  5. Step 5: Solve for x
    x = 1,809,999,729.78/37,814.80
  6. Step 6: Final answer
    x = 47,864.85

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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.