Home / 20,497.15-28,285.57-11,544.68

Finding the Fourth Proportional to 20,497.15, 28,285.57 and 11,544.68

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Solution

The fourth proportional to 20,497.15, 28,285.57 and 11,544.68 is: 15,931.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,497.15 : 28,285.57 = 11,544.68 : x
  2. Step 2: Convert to fraction form
    20,497.15/28,285.57 = 11,544.68/x
  3. Step 3: Cross multiply
    20,497.15x = 28,285.57 × 11,544.68
  4. Step 4: Simplify right side
    20,497.15x = 326,547,854.27
  5. Step 5: Solve for x
    x = 326,547,854.27/20,497.15
  6. Step 6: Final answer
    x = 15,931.38

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1.5x scale

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.