Home / 38,916.39-58,382.78-12,619.08

Finding the Fourth Proportional to 38,916.39, 58,382.78 and 12,619.08

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Solution

The fourth proportional to 38,916.39, 58,382.78 and 12,619.08 is: 18,931.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,916.39 : 58,382.78 = 12,619.08 : x
  2. Step 2: Convert to fraction form
    38,916.39/58,382.78 = 12,619.08/x
  3. Step 3: Cross multiply
    38,916.39x = 58,382.78 × 12,619.08
  4. Step 4: Simplify right side
    38,916.39x = 736,736,908.35
  5. Step 5: Solve for x
    x = 736,736,908.35/38,916.39
  6. Step 6: Final answer
    x = 18,931.28

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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.