Home / 30,248.11-45,372.12-12,488.77

Finding the Fourth Proportional to 30,248.11, 45,372.12 and 12,488.77

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Solution

The fourth proportional to 30,248.11, 45,372.12 and 12,488.77 is: 18,733.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,248.11 : 45,372.12 = 12,488.77 : x
  2. Step 2: Convert to fraction form
    30,248.11/45,372.12 = 12,488.77/x
  3. Step 3: Cross multiply
    30,248.11x = 45,372.12 × 12,488.77
  4. Step 4: Simplify right side
    30,248.11x = 566,641,971.09
  5. Step 5: Solve for x
    x = 566,641,971.09/30,248.11
  6. Step 6: Final answer
    x = 18,733.14

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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.