Home / 22,769.02-31,421.43-12,698.11

Finding the Fourth Proportional to 22,769.02, 31,421.43 and 12,698.11

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Solution

The fourth proportional to 22,769.02, 31,421.43 and 12,698.11 is: 17,523.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,769.02 : 31,421.43 = 12,698.11 : x
  2. Step 2: Convert to fraction form
    22,769.02/31,421.43 = 12,698.11/x
  3. Step 3: Cross multiply
    22,769.02x = 31,421.43 × 12,698.11
  4. Step 4: Simplify right side
    22,769.02x = 398,992,774.50
  5. Step 5: Solve for x
    x = 398,992,774.50/22,769.02
  6. Step 6: Final answer
    x = 17,523.49

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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.