Home / 28,017.24-42,028.28-9,293.28

Finding the Fourth Proportional to 28,017.24, 42,028.28 and 9,293.28

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Solution

The fourth proportional to 28,017.24, 42,028.28 and 9,293.28 is: 13,940.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,017.24 : 42,028.28 = 9,293.28 : x
  2. Step 2: Convert to fraction form
    28,017.24/42,028.28 = 9,293.28/x
  3. Step 3: Cross multiply
    28,017.24x = 42,028.28 × 9,293.28
  4. Step 4: Simplify right side
    28,017.24x = 390,580,573.96
  5. Step 5: Solve for x
    x = 390,580,573.96/28,017.24
  6. Step 6: Final answer
    x = 13,940.72

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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.