Home / 19,688.67-29,522.10-13,455.72

Finding the Fourth Proportional to 19,688.67, 29,522.10 and 13,455.72

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Solution

The fourth proportional to 19,688.67, 29,522.10 and 13,455.72 is: 20,176.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,688.67 : 29,522.10 = 13,455.72 : x
  2. Step 2: Convert to fraction form
    19,688.67/29,522.10 = 13,455.72/x
  3. Step 3: Cross multiply
    19,688.67x = 29,522.10 × 13,455.72
  4. Step 4: Simplify right side
    19,688.67x = 397,241,161.87
  5. Step 5: Solve for x
    x = 397,241,161.87/19,688.67
  6. Step 6: Final answer
    x = 20,176.13

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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.