Home / 31,980.58-47,970.96-11,199.22

Finding the Fourth Proportional to 31,980.58, 47,970.96 and 11,199.22

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Solution

The fourth proportional to 31,980.58, 47,970.96 and 11,199.22 is: 16,798.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,980.58 : 47,970.96 = 11,199.22 : x
  2. Step 2: Convert to fraction form
    31,980.58/47,970.96 = 11,199.22/x
  3. Step 3: Cross multiply
    31,980.58x = 47,970.96 × 11,199.22
  4. Step 4: Simplify right side
    31,980.58x = 537,237,334.65
  5. Step 5: Solve for x
    x = 537,237,334.65/31,980.58
  6. Step 6: Final answer
    x = 16,798.86

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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.