Home / 19,345.84-29,020.85-8,253.70

Finding the Fourth Proportional to 19,345.84, 29,020.85 and 8,253.70

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Solution

The fourth proportional to 19,345.84, 29,020.85 and 8,253.70 is: 12,381.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,345.84 : 29,020.85 = 8,253.70 : x
  2. Step 2: Convert to fraction form
    19,345.84/29,020.85 = 8,253.70/x
  3. Step 3: Cross multiply
    19,345.84x = 29,020.85 × 8,253.70
  4. Step 4: Simplify right side
    19,345.84x = 239,529,389.65
  5. Step 5: Solve for x
    x = 239,529,389.65/19,345.84
  6. Step 6: Final answer
    x = 12,381.44

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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.