Home / 20,483.27-28,264.71-11,530.61

Finding the Fourth Proportional to 20,483.27, 28,264.71 and 11,530.61

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Solution

The fourth proportional to 20,483.27, 28,264.71 and 11,530.61 is: 15,911.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,483.27 : 28,264.71 = 11,530.61 : x
  2. Step 2: Convert to fraction form
    20,483.27/28,264.71 = 11,530.61/x
  3. Step 3: Cross multiply
    20,483.27x = 28,264.71 × 11,530.61
  4. Step 4: Simplify right side
    20,483.27x = 325,909,347.77
  5. Step 5: Solve for x
    x = 325,909,347.77/20,483.27
  6. Step 6: Final answer
    x = 15,911.00

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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.