Home / 28,376.14-42,520.26-19,495.72

Finding the Fourth Proportional to 28,376.14, 42,520.26 and 19,495.72

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Solution

The fourth proportional to 28,376.14, 42,520.26 and 19,495.72 is: 29,213.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,376.14 : 42,520.26 = 19,495.72 : x
  2. Step 2: Convert to fraction form
    28,376.14/42,520.26 = 19,495.72/x
  3. Step 3: Cross multiply
    28,376.14x = 42,520.26 × 19,495.72
  4. Step 4: Simplify right side
    28,376.14x = 828,963,083.29
  5. Step 5: Solve for x
    x = 828,963,083.29/28,376.14
  6. Step 6: Final answer
    x = 29,213.38

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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.