Home / 19,640.61-29,437.52-13,685.27

Finding the Fourth Proportional to 19,640.61, 29,437.52 and 13,685.27

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Solution

The fourth proportional to 19,640.61, 29,437.52 and 13,685.27 is: 20,511.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,640.61 : 29,437.52 = 13,685.27 : x
  2. Step 2: Convert to fraction form
    19,640.61/29,437.52 = 13,685.27/x
  3. Step 3: Cross multiply
    19,640.61x = 29,437.52 × 13,685.27
  4. Step 4: Simplify right side
    19,640.61x = 402,860,193.72
  5. Step 5: Solve for x
    x = 402,860,193.72/19,640.61
  6. Step 6: Final answer
    x = 20,511.59

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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.