Home / 19,702.61-27,199.64-15,216.29

Finding the Fourth Proportional to 19,702.61, 27,199.64 and 15,216.29

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Solution

The fourth proportional to 19,702.61, 27,199.64 and 15,216.29 is: 21,006.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,702.61 : 27,199.64 = 15,216.29 : x
  2. Step 2: Convert to fraction form
    19,702.61/27,199.64 = 15,216.29/x
  3. Step 3: Cross multiply
    19,702.61x = 27,199.64 × 15,216.29
  4. Step 4: Simplify right side
    19,702.61x = 413,877,610.14
  5. Step 5: Solve for x
    x = 413,877,610.14/19,702.61
  6. Step 6: Final answer
    x = 21,006.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.