Home / 28,935.80-43,395.60-9,220.40

Finding the Fourth Proportional to 28,935.80, 43,395.60 and 9,220.40

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Solution

The fourth proportional to 28,935.80, 43,395.60 and 9,220.40 is: 13,828.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,935.80 : 43,395.60 = 9,220.40 : x
  2. Step 2: Convert to fraction form
    28,935.80/43,395.60 = 9,220.40/x
  3. Step 3: Cross multiply
    28,935.80x = 43,395.60 × 9,220.40
  4. Step 4: Simplify right side
    28,935.80x = 400,124,790.24
  5. Step 5: Solve for x
    x = 400,124,790.24/28,935.80
  6. Step 6: Final answer
    x = 13,828.02

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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.