Home / 23,180.91-31,989.63-12,570.49

Finding the Fourth Proportional to 23,180.91, 31,989.63 and 12,570.49

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Solution

The fourth proportional to 23,180.91, 31,989.63 and 12,570.49 is: 17,347.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,180.91 : 31,989.63 = 12,570.49 : x
  2. Step 2: Convert to fraction form
    23,180.91/31,989.63 = 12,570.49/x
  3. Step 3: Cross multiply
    23,180.91x = 31,989.63 × 12,570.49
  4. Step 4: Simplify right side
    23,180.91x = 402,125,324.02
  5. Step 5: Solve for x
    x = 402,125,324.02/23,180.91
  6. Step 6: Final answer
    x = 17,347.26

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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.