Home / 20,062.08-27,688.32-11,678.40

Finding the Fourth Proportional to 20,062.08, 27,688.32 and 11,678.40

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Solution

The fourth proportional to 20,062.08, 27,688.32 and 11,678.40 is: 16,117.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,062.08 : 27,688.32 = 11,678.40 : x
  2. Step 2: Convert to fraction form
    20,062.08/27,688.32 = 11,678.40/x
  3. Step 3: Cross multiply
    20,062.08x = 27,688.32 × 11,678.40
  4. Step 4: Simplify right side
    20,062.08x = 323,355,276.29
  5. Step 5: Solve for x
    x = 323,355,276.29/20,062.08
  6. Step 6: Final answer
    x = 16,117.73

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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.