Home / 28,621.46-42,934.93-8,894.72

Finding the Fourth Proportional to 28,621.46, 42,934.93 and 8,894.72

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Solution

The fourth proportional to 28,621.46, 42,934.93 and 8,894.72 is: 13,342.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,621.46 : 42,934.93 = 8,894.72 : x
  2. Step 2: Convert to fraction form
    28,621.46/42,934.93 = 8,894.72/x
  3. Step 3: Cross multiply
    28,621.46x = 42,934.93 × 8,894.72
  4. Step 4: Simplify right side
    28,621.46x = 381,894,265.67
  5. Step 5: Solve for x
    x = 381,894,265.67/28,621.46
  6. Step 6: Final answer
    x = 13,342.93

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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.