Home / 28,466.88-39,298.68-19,518

Finding the Fourth Proportional to 28,466.88, 39,298.68 and 19,518

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Solution

The fourth proportional to 28,466.88, 39,298.68 and 19,518 is: 26,944.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,466.88 : 39,298.68 = 19,518 : x
  2. Step 2: Convert to fraction form
    28,466.88/39,298.68 = 19,518/x
  3. Step 3: Cross multiply
    28,466.88x = 39,298.68 × 19,518
  4. Step 4: Simplify right side
    28,466.88x = 767,031,636.24
  5. Step 5: Solve for x
    x = 767,031,636.24/28,466.88
  6. Step 6: Final answer
    x = 26,944.70

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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.