Home / 30,872.32-46,310.64-15,285.76

Finding the Fourth Proportional to 30,872.32, 46,310.64 and 15,285.76

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Solution

The fourth proportional to 30,872.32, 46,310.64 and 15,285.76 is: 22,929.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,872.32 : 46,310.64 = 15,285.76 : x
  2. Step 2: Convert to fraction form
    30,872.32/46,310.64 = 15,285.76/x
  3. Step 3: Cross multiply
    30,872.32x = 46,310.64 × 15,285.76
  4. Step 4: Simplify right side
    30,872.32x = 707,893,328.49
  5. Step 5: Solve for x
    x = 707,893,328.49/30,872.32
  6. Step 6: Final answer
    x = 22,929.71

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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.