Home / 20,030.13-27,640.48-11,077.11

Finding the Fourth Proportional to 20,030.13, 27,640.48 and 11,077.11

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Solution

The fourth proportional to 20,030.13, 27,640.48 and 11,077.11 is: 15,285.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,030.13 : 27,640.48 = 11,077.11 : x
  2. Step 2: Convert to fraction form
    20,030.13/27,640.48 = 11,077.11/x
  3. Step 3: Cross multiply
    20,030.13x = 27,640.48 × 11,077.11
  4. Step 4: Simplify right side
    20,030.13x = 306,176,637.41
  5. Step 5: Solve for x
    x = 306,176,637.41/20,030.13
  6. Step 6: Final answer
    x = 15,285.80

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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.