Home / 20,972.48-28,946.16-12,026.03

Finding the Fourth Proportional to 20,972.48, 28,946.16 and 12,026.03

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Solution

The fourth proportional to 20,972.48, 28,946.16 and 12,026.03 is: 16,598.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,972.48 : 28,946.16 = 12,026.03 : x
  2. Step 2: Convert to fraction form
    20,972.48/28,946.16 = 12,026.03/x
  3. Step 3: Cross multiply
    20,972.48x = 28,946.16 × 12,026.03
  4. Step 4: Simplify right side
    20,972.48x = 348,107,243.81
  5. Step 5: Solve for x
    x = 348,107,243.81/20,972.48
  6. Step 6: Final answer
    x = 16,598.29

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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.