Home / 20,042.50-27,656.36-11,088.76

Finding the Fourth Proportional to 20,042.50, 27,656.36 and 11,088.76

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Solution

The fourth proportional to 20,042.50, 27,656.36 and 11,088.76 is: 15,301.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,042.50 : 27,656.36 = 11,088.76 : x
  2. Step 2: Convert to fraction form
    20,042.50/27,656.36 = 11,088.76/x
  3. Step 3: Cross multiply
    20,042.50x = 27,656.36 × 11,088.76
  4. Step 4: Simplify right side
    20,042.50x = 306,674,738.51
  5. Step 5: Solve for x
    x = 306,674,738.51/20,042.50
  6. Step 6: Final answer
    x = 15,301.22

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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.