Home / 25,691.99-38,483.35-12,345.36

Finding the Fourth Proportional to 25,691.99, 38,483.35 and 12,345.36

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Solution

The fourth proportional to 25,691.99, 38,483.35 and 12,345.36 is: 18,491.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,691.99 : 38,483.35 = 12,345.36 : x
  2. Step 2: Convert to fraction form
    25,691.99/38,483.35 = 12,345.36/x
  3. Step 3: Cross multiply
    25,691.99x = 38,483.35 × 12,345.36
  4. Step 4: Simplify right side
    25,691.99x = 475,090,920.49
  5. Step 5: Solve for x
    x = 475,090,920.49/25,691.99
  6. Step 6: Final answer
    x = 18,491.80

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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.