Home / 28,971.10-43,456.65-9,250.30

Finding the Fourth Proportional to 28,971.10, 43,456.65 and 9,250.30

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Solution

The fourth proportional to 28,971.10, 43,456.65 and 9,250.30 is: 13,875.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,971.10 : 43,456.65 = 9,250.30 : x
  2. Step 2: Convert to fraction form
    28,971.10/43,456.65 = 9,250.30/x
  3. Step 3: Cross multiply
    28,971.10x = 43,456.65 × 9,250.30
  4. Step 4: Simplify right side
    28,971.10x = 401,987,049.50
  5. Step 5: Solve for x
    x = 401,987,049.50/28,971.10
  6. Step 6: Final answer
    x = 13,875.45

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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.