Home / 22,487.40-31,029.29-12,927.69

Finding the Fourth Proportional to 22,487.40, 31,029.29 and 12,927.69

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Solution

The fourth proportional to 22,487.40, 31,029.29 and 12,927.69 is: 17,838.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,487.40 : 31,029.29 = 12,927.69 : x
  2. Step 2: Convert to fraction form
    22,487.40/31,029.29 = 12,927.69/x
  3. Step 3: Cross multiply
    22,487.40x = 31,029.29 × 12,927.69
  4. Step 4: Simplify right side
    22,487.40x = 401,136,822.26
  5. Step 5: Solve for x
    x = 401,136,822.26/22,487.40
  6. Step 6: Final answer
    x = 17,838.30

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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.