Home / 20,302.85-28,026.57-12,347.63

Finding the Fourth Proportional to 20,302.85, 28,026.57 and 12,347.63

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Solution

The fourth proportional to 20,302.85, 28,026.57 and 12,347.63 is: 17,044.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,302.85 : 28,026.57 = 12,347.63 : x
  2. Step 2: Convert to fraction form
    20,302.85/28,026.57 = 12,347.63/x
  3. Step 3: Cross multiply
    20,302.85x = 28,026.57 × 12,347.63
  4. Step 4: Simplify right side
    20,302.85x = 346,061,716.53
  5. Step 5: Solve for x
    x = 346,061,716.53/20,302.85
  6. Step 6: Final answer
    x = 17,044.98

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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.