Home / 25,403.41-38,082.43-12,916.45

Finding the Fourth Proportional to 25,403.41, 38,082.43 and 12,916.45

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Solution

The fourth proportional to 25,403.41, 38,082.43 and 12,916.45 is: 19,363.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,403.41 : 38,082.43 = 12,916.45 : x
  2. Step 2: Convert to fraction form
    25,403.41/38,082.43 = 12,916.45/x
  3. Step 3: Cross multiply
    25,403.41x = 38,082.43 × 12,916.45
  4. Step 4: Simplify right side
    25,403.41x = 491,889,802.97
  5. Step 5: Solve for x
    x = 491,889,802.97/25,403.41
  6. Step 6: Final answer
    x = 19,363.14

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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.