Home / 28,293.30-42,424.56-11,411.28

Finding the Fourth Proportional to 28,293.30, 42,424.56 and 11,411.28

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Solution

The fourth proportional to 28,293.30, 42,424.56 and 11,411.28 is: 17,110.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,293.30 : 42,424.56 = 11,411.28 : x
  2. Step 2: Convert to fraction form
    28,293.30/42,424.56 = 11,411.28/x
  3. Step 3: Cross multiply
    28,293.30x = 42,424.56 × 11,411.28
  4. Step 4: Simplify right side
    28,293.30x = 484,118,533.04
  5. Step 5: Solve for x
    x = 484,118,533.04/28,293.30
  6. Step 6: Final answer
    x = 17,110.71

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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.