Home / 22,642.16-31,246.44-12,570.80

Finding the Fourth Proportional to 22,642.16, 31,246.44 and 12,570.80

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Solution

The fourth proportional to 22,642.16, 31,246.44 and 12,570.80 is: 17,347.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,642.16 : 31,246.44 = 12,570.80 : x
  2. Step 2: Convert to fraction form
    22,642.16/31,246.44 = 12,570.80/x
  3. Step 3: Cross multiply
    22,642.16x = 31,246.44 × 12,570.80
  4. Step 4: Simplify right side
    22,642.16x = 392,792,747.95
  5. Step 5: Solve for x
    x = 392,792,747.95/22,642.16
  6. Step 6: Final answer
    x = 17,347.85

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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.