Home / 28,314.08-42,454.86-11,685.56

Finding the Fourth Proportional to 28,314.08, 42,454.86 and 11,685.56

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Solution

The fourth proportional to 28,314.08, 42,454.86 and 11,685.56 is: 17,521.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,314.08 : 42,454.86 = 11,685.56 : x
  2. Step 2: Convert to fraction form
    28,314.08/42,454.86 = 11,685.56/x
  3. Step 3: Cross multiply
    28,314.08x = 42,454.86 × 11,685.56
  4. Step 4: Simplify right side
    28,314.08x = 496,108,813.82
  5. Step 5: Solve for x
    x = 496,108,813.82/28,314.08
  6. Step 6: Final answer
    x = 17,521.63

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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.