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Finding the Fourth Proportional to 19,515, 29,108.04 and 16,358.40

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Solution

The fourth proportional to 19,515, 29,108.04 and 16,358.40 is: 24,399.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,515 : 29,108.04 = 16,358.40 : x
  2. Step 2: Convert to fraction form
    19,515/29,108.04 = 16,358.40/x
  3. Step 3: Cross multiply
    19,515x = 29,108.04 × 16,358.40
  4. Step 4: Simplify right side
    19,515x = 476,160,961.54
  5. Step 5: Solve for x
    x = 476,160,961.54/19,515
  6. Step 6: Final answer
    x = 24,399.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.