Home / 22,261.41-30,720.45-12,701.05

Finding the Fourth Proportional to 22,261.41, 30,720.45 and 12,701.05

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Solution

The fourth proportional to 22,261.41, 30,720.45 and 12,701.05 is: 17,527.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,261.41 : 30,720.45 = 12,701.05 : x
  2. Step 2: Convert to fraction form
    22,261.41/30,720.45 = 12,701.05/x
  3. Step 3: Cross multiply
    22,261.41x = 30,720.45 × 12,701.05
  4. Step 4: Simplify right side
    22,261.41x = 390,181,971.47
  5. Step 5: Solve for x
    x = 390,181,971.47/22,261.41
  6. Step 6: Final answer
    x = 17,527.28

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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.