Home / 20,030.04-27,640.32-11,077.02

Finding the Fourth Proportional to 20,030.04, 27,640.32 and 11,077.02

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Solution

The fourth proportional to 20,030.04, 27,640.32 and 11,077.02 is: 15,285.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,030.04 : 27,640.32 = 11,077.02 : x
  2. Step 2: Convert to fraction form
    20,030.04/27,640.32 = 11,077.02/x
  3. Step 3: Cross multiply
    20,030.04x = 27,640.32 × 11,077.02
  4. Step 4: Simplify right side
    20,030.04x = 306,172,377.45
  5. Step 5: Solve for x
    x = 306,172,377.45/20,030.04
  6. Step 6: Final answer
    x = 15,285.66

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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.