Home / 49,384.20-74,018.70-19,787.40

Finding the Fourth Proportional to 49,384.20, 74,018.70 and 19,787.40

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Solution

The fourth proportional to 49,384.20, 74,018.70 and 19,787.40 is: 29,658.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,384.20 : 74,018.70 = 19,787.40 : x
  2. Step 2: Convert to fraction form
    49,384.20/74,018.70 = 19,787.40/x
  3. Step 3: Cross multiply
    49,384.20x = 74,018.70 × 19,787.40
  4. Step 4: Simplify right side
    49,384.20x = 1,464,637,624.38
  5. Step 5: Solve for x
    x = 1,464,637,624.38/49,384.20
  6. Step 6: Final answer
    x = 29,658.02

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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.