Home / 37,611.20-56,416.80-9,909.20

Finding the Fourth Proportional to 37,611.20, 56,416.80 and 9,909.20

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Solution

The fourth proportional to 37,611.20, 56,416.80 and 9,909.20 is: 14,863.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,611.20 : 56,416.80 = 9,909.20 : x
  2. Step 2: Convert to fraction form
    37,611.20/56,416.80 = 9,909.20/x
  3. Step 3: Cross multiply
    37,611.20x = 56,416.80 × 9,909.20
  4. Step 4: Simplify right side
    37,611.20x = 559,045,354.56
  5. Step 5: Solve for x
    x = 559,045,354.56/37,611.20
  6. Step 6: Final answer
    x = 14,863.80

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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.