Home / 28,866.30-43,300.80-9,146.40

Finding the Fourth Proportional to 28,866.30, 43,300.80 and 9,146.40

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Solution

The fourth proportional to 28,866.30, 43,300.80 and 9,146.40 is: 13,720.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,866.30 : 43,300.80 = 9,146.40 : x
  2. Step 2: Convert to fraction form
    28,866.30/43,300.80 = 9,146.40/x
  3. Step 3: Cross multiply
    28,866.30x = 43,300.80 × 9,146.40
  4. Step 4: Simplify right side
    28,866.30x = 396,046,437.12
  5. Step 5: Solve for x
    x = 396,046,437.12/28,866.30
  6. Step 6: Final answer
    x = 13,720.03

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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.