Home / 16,681.66-23,023.78-10,720.78

Finding the Fourth Proportional to 16,681.66, 23,023.78 and 10,720.78

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Solution

The fourth proportional to 16,681.66, 23,023.78 and 10,720.78 is: 14,796.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,681.66 : 23,023.78 = 10,720.78 : x
  2. Step 2: Convert to fraction form
    16,681.66/23,023.78 = 10,720.78/x
  3. Step 3: Cross multiply
    16,681.66x = 23,023.78 × 10,720.78
  4. Step 4: Simplify right side
    16,681.66x = 246,832,880.15
  5. Step 5: Solve for x
    x = 246,832,880.15/16,681.66
  6. Step 6: Final answer
    x = 14,796.66

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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.