Home / 22,710.02-31,341.30-12,638.43

Finding the Fourth Proportional to 22,710.02, 31,341.30 and 12,638.43

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Solution

The fourth proportional to 22,710.02, 31,341.30 and 12,638.43 is: 17,441.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,710.02 : 31,341.30 = 12,638.43 : x
  2. Step 2: Convert to fraction form
    22,710.02/31,341.30 = 12,638.43/x
  3. Step 3: Cross multiply
    22,710.02x = 31,341.30 × 12,638.43
  4. Step 4: Simplify right side
    22,710.02x = 396,104,743.70
  5. Step 5: Solve for x
    x = 396,104,743.70/22,710.02
  6. Step 6: Final answer
    x = 17,441.85

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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.