Home / 19,490.17-29,234.85-7,800.25

Finding the Fourth Proportional to 19,490.17, 29,234.85 and 7,800.25

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Solution

The fourth proportional to 19,490.17, 29,234.85 and 7,800.25 is: 11,700.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,490.17 : 29,234.85 = 7,800.25 : x
  2. Step 2: Convert to fraction form
    19,490.17/29,234.85 = 7,800.25/x
  3. Step 3: Cross multiply
    19,490.17x = 29,234.85 × 7,800.25
  4. Step 4: Simplify right side
    19,490.17x = 228,039,138.71
  5. Step 5: Solve for x
    x = 228,039,138.71/19,490.17
  6. Step 6: Final answer
    x = 11,700.21

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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.