Home / 28,415.79-42,612.84-9,436.86

Finding the Fourth Proportional to 28,415.79, 42,612.84 and 9,436.86

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Solution

The fourth proportional to 28,415.79, 42,612.84 and 9,436.86 is: 14,151.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,415.79 : 42,612.84 = 9,436.86 : x
  2. Step 2: Convert to fraction form
    28,415.79/42,612.84 = 9,436.86/x
  3. Step 3: Cross multiply
    28,415.79x = 42,612.84 × 9,436.86
  4. Step 4: Simplify right side
    28,415.79x = 402,131,405.28
  5. Step 5: Solve for x
    x = 402,131,405.28/28,415.79
  6. Step 6: Final answer
    x = 14,151.69

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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.