Home / 22,829.80-31,520.64-14,782.90

Finding the Fourth Proportional to 22,829.80, 31,520.64 and 14,782.90

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Solution

The fourth proportional to 22,829.80, 31,520.64 and 14,782.90 is: 20,410.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,829.80 : 31,520.64 = 14,782.90 : x
  2. Step 2: Convert to fraction form
    22,829.80/31,520.64 = 14,782.90/x
  3. Step 3: Cross multiply
    22,829.80x = 31,520.64 × 14,782.90
  4. Step 4: Simplify right side
    22,829.80x = 465,966,469.06
  5. Step 5: Solve for x
    x = 465,966,469.06/22,829.80
  6. Step 6: Final answer
    x = 20,410.45

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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.