Home / 34,243.41-47,255.90-20,812.16

Finding the Fourth Proportional to 34,243.41, 47,255.90 and 20,812.16

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Solution

The fourth proportional to 34,243.41, 47,255.90 and 20,812.16 is: 28,720.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,243.41 : 47,255.90 = 20,812.16 : x
  2. Step 2: Convert to fraction form
    34,243.41/47,255.90 = 20,812.16/x
  3. Step 3: Cross multiply
    34,243.41x = 47,255.90 × 20,812.16
  4. Step 4: Simplify right side
    34,243.41x = 983,497,011.40
  5. Step 5: Solve for x
    x = 983,497,011.40/34,243.41
  6. Step 6: Final answer
    x = 28,720.77

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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.