Home / 28,288.08-42,415.86-11,659.59

Finding the Fourth Proportional to 28,288.08, 42,415.86 and 11,659.59

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Solution

The fourth proportional to 28,288.08, 42,415.86 and 11,659.59 is: 17,482.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,288.08 : 42,415.86 = 11,659.59 : x
  2. Step 2: Convert to fraction form
    28,288.08/42,415.86 = 11,659.59/x
  3. Step 3: Cross multiply
    28,288.08x = 42,415.86 × 11,659.59
  4. Step 4: Simplify right side
    28,288.08x = 494,551,537.10
  5. Step 5: Solve for x
    x = 494,551,537.10/28,288.08
  6. Step 6: Final answer
    x = 17,482.68

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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.