Home / 28,693.10-43,042.12-7,916.60

Finding the Fourth Proportional to 28,693.10, 43,042.12 and 7,916.60

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Solution

The fourth proportional to 28,693.10, 43,042.12 and 7,916.60 is: 11,875.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,693.10 : 43,042.12 = 7,916.60 : x
  2. Step 2: Convert to fraction form
    28,693.10/43,042.12 = 7,916.60/x
  3. Step 3: Cross multiply
    28,693.10x = 43,042.12 × 7,916.60
  4. Step 4: Simplify right side
    28,693.10x = 340,747,031.98
  5. Step 5: Solve for x
    x = 340,747,031.98/28,693.10
  6. Step 6: Final answer
    x = 11,875.58

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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.