Home / 21,503.32-29,676.54-12,555.16

Finding the Fourth Proportional to 21,503.32, 29,676.54 and 12,555.16

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Solution

The fourth proportional to 21,503.32, 29,676.54 and 12,555.16 is: 17,327.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,503.32 : 29,676.54 = 12,555.16 : x
  2. Step 2: Convert to fraction form
    21,503.32/29,676.54 = 12,555.16/x
  3. Step 3: Cross multiply
    21,503.32x = 29,676.54 × 12,555.16
  4. Step 4: Simplify right side
    21,503.32x = 372,593,707.95
  5. Step 5: Solve for x
    x = 372,593,707.95/21,503.32
  6. Step 6: Final answer
    x = 17,327.26

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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.