Home / 39,276.20-58,916.16-12,980.36

Finding the Fourth Proportional to 39,276.20, 58,916.16 and 12,980.36

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Solution

The fourth proportional to 39,276.20, 58,916.16 and 12,980.36 is: 19,471.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,276.20 : 58,916.16 = 12,980.36 : x
  2. Step 2: Convert to fraction form
    39,276.20/58,916.16 = 12,980.36/x
  3. Step 3: Cross multiply
    39,276.20x = 58,916.16 × 12,980.36
  4. Step 4: Simplify right side
    39,276.20x = 764,752,966.62
  5. Step 5: Solve for x
    x = 764,752,966.62/39,276.20
  6. Step 6: Final answer
    x = 19,471.15

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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.