Home / 22,861.04-31,548.30-12,789.66

Finding the Fourth Proportional to 22,861.04, 31,548.30 and 12,789.66

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Solution

The fourth proportional to 22,861.04, 31,548.30 and 12,789.66 is: 17,649.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,861.04 : 31,548.30 = 12,789.66 : x
  2. Step 2: Convert to fraction form
    22,861.04/31,548.30 = 12,789.66/x
  3. Step 3: Cross multiply
    22,861.04x = 31,548.30 × 12,789.66
  4. Step 4: Simplify right side
    22,861.04x = 403,492,030.58
  5. Step 5: Solve for x
    x = 403,492,030.58/22,861.04
  6. Step 6: Final answer
    x = 17,649.77

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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.