Home / 20,484.95-28,268.15-11,532.16

Finding the Fourth Proportional to 20,484.95, 28,268.15 and 11,532.16

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Solution

The fourth proportional to 20,484.95, 28,268.15 and 11,532.16 is: 15,913.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,484.95 : 28,268.15 = 11,532.16 : x
  2. Step 2: Convert to fraction form
    20,484.95/28,268.15 = 11,532.16/x
  3. Step 3: Cross multiply
    20,484.95x = 28,268.15 × 11,532.16
  4. Step 4: Simplify right side
    20,484.95x = 325,992,828.70
  5. Step 5: Solve for x
    x = 325,992,828.70/20,484.95
  6. Step 6: Final answer
    x = 15,913.77

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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.