Home / 20,261.08-27,955.26-15,237.34

Finding the Fourth Proportional to 20,261.08, 27,955.26 and 15,237.34

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Solution

The fourth proportional to 20,261.08, 27,955.26 and 15,237.34 is: 21,023.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,261.08 : 27,955.26 = 15,237.34 : x
  2. Step 2: Convert to fraction form
    20,261.08/27,955.26 = 15,237.34/x
  3. Step 3: Cross multiply
    20,261.08x = 27,955.26 × 15,237.34
  4. Step 4: Simplify right side
    20,261.08x = 425,963,801.41
  5. Step 5: Solve for x
    x = 425,963,801.41/20,261.08
  6. Step 6: Final answer
    x = 21,023.75

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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.