Home / 19,123.93-28,689.95-5,977.29

Finding the Fourth Proportional to 19,123.93, 28,689.95 and 5,977.29

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Solution

The fourth proportional to 19,123.93, 28,689.95 and 5,977.29 is: 8,967.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,123.93 : 28,689.95 = 5,977.29 : x
  2. Step 2: Convert to fraction form
    19,123.93/28,689.95 = 5,977.29/x
  3. Step 3: Cross multiply
    19,123.93x = 28,689.95 × 5,977.29
  4. Step 4: Simplify right side
    19,123.93x = 171,488,151.24
  5. Step 5: Solve for x
    x = 171,488,151.24/19,123.93
  6. Step 6: Final answer
    x = 8,967.20

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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.