Home / 19,264.08-28,897.20-5,412

Finding the Fourth Proportional to 19,264.08, 28,897.20 and 5,412

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Solution

The fourth proportional to 19,264.08, 28,897.20 and 5,412 is: 8,118.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,264.08 : 28,897.20 = 5,412 : x
  2. Step 2: Convert to fraction form
    19,264.08/28,897.20 = 5,412/x
  3. Step 3: Cross multiply
    19,264.08x = 28,897.20 × 5,412
  4. Step 4: Simplify right side
    19,264.08x = 156,391,646.40
  5. Step 5: Solve for x
    x = 156,391,646.40/19,264.08
  6. Step 6: Final answer
    x = 8,118.30

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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.