Home / 30,614.20-45,916.26-28,621.72

Finding the Fourth Proportional to 30,614.20, 45,916.26 and 28,621.72

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Solution

The fourth proportional to 30,614.20, 45,916.26 and 28,621.72 is: 42,927.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,614.20 : 45,916.26 = 28,621.72 : x
  2. Step 2: Convert to fraction form
    30,614.20/45,916.26 = 28,621.72/x
  3. Step 3: Cross multiply
    30,614.20x = 45,916.26 × 28,621.72
  4. Step 4: Simplify right side
    30,614.20x = 1,314,202,337.17
  5. Step 5: Solve for x
    x = 1,314,202,337.17/30,614.20
  6. Step 6: Final answer
    x = 42,927.87

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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.