Home / 23,180.85-31,989.40-12,570.46

Finding the Fourth Proportional to 23,180.85, 31,989.40 and 12,570.46

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Solution

The fourth proportional to 23,180.85, 31,989.40 and 12,570.46 is: 17,347.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,180.85 : 31,989.40 = 12,570.46 : x
  2. Step 2: Convert to fraction form
    23,180.85/31,989.40 = 12,570.46/x
  3. Step 3: Cross multiply
    23,180.85x = 31,989.40 × 12,570.46
  4. Step 4: Simplify right side
    23,180.85x = 402,121,361.72
  5. Step 5: Solve for x
    x = 402,121,361.72/23,180.85
  6. Step 6: Final answer
    x = 17,347.14

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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.