Home / 38,446.84-57,688.69-20,916.64

Finding the Fourth Proportional to 38,446.84, 57,688.69 and 20,916.64

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Solution

The fourth proportional to 38,446.84, 57,688.69 and 20,916.64 is: 31,384.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,446.84 : 57,688.69 = 20,916.64 : x
  2. Step 2: Convert to fraction form
    38,446.84/57,688.69 = 20,916.64/x
  3. Step 3: Cross multiply
    38,446.84x = 57,688.69 × 20,916.64
  4. Step 4: Simplify right side
    38,446.84x = 1,206,653,560.80
  5. Step 5: Solve for x
    x = 1,206,653,560.80/38,446.84
  6. Step 6: Final answer
    x = 31,384.99

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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.