Home / 40,720.65-56,190.70-22,811.86

Finding the Fourth Proportional to 40,720.65, 56,190.70 and 22,811.86

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Solution

The fourth proportional to 40,720.65, 56,190.70 and 22,811.86 is: 31,478.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,720.65 : 56,190.70 = 22,811.86 : x
  2. Step 2: Convert to fraction form
    40,720.65/56,190.70 = 22,811.86/x
  3. Step 3: Cross multiply
    40,720.65x = 56,190.70 × 22,811.86
  4. Step 4: Simplify right side
    40,720.65x = 1,281,814,381.70
  5. Step 5: Solve for x
    x = 1,281,814,381.70/40,720.65
  6. Step 6: Final answer
    x = 31,478.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.