Home / 20,009.98-27,615.93-11,512.48

Finding the Fourth Proportional to 20,009.98, 27,615.93 and 11,512.48

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Solution

The fourth proportional to 20,009.98, 27,615.93 and 11,512.48 is: 15,888.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,009.98 : 27,615.93 = 11,512.48 : x
  2. Step 2: Convert to fraction form
    20,009.98/27,615.93 = 11,512.48/x
  3. Step 3: Cross multiply
    20,009.98x = 27,615.93 × 11,512.48
  4. Step 4: Simplify right side
    20,009.98x = 317,927,841.81
  5. Step 5: Solve for x
    x = 317,927,841.81/20,009.98
  6. Step 6: Final answer
    x = 15,888.46

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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.