Home / 19,221.09-28,828.89-8,702.98

Finding the Fourth Proportional to 19,221.09, 28,828.89 and 8,702.98

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Solution

The fourth proportional to 19,221.09, 28,828.89 and 8,702.98 is: 13,053.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,221.09 : 28,828.89 = 8,702.98 : x
  2. Step 2: Convert to fraction form
    19,221.09/28,828.89 = 8,702.98/x
  3. Step 3: Cross multiply
    19,221.09x = 28,828.89 × 8,702.98
  4. Step 4: Simplify right side
    19,221.09x = 250,897,253.09
  5. Step 5: Solve for x
    x = 250,897,253.09/19,221.09
  6. Step 6: Final answer
    x = 13,053.23

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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.