Home / 20,316.91-28,026.06-11,818.08

Finding the Fourth Proportional to 20,316.91, 28,026.06 and 11,818.08

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Solution

The fourth proportional to 20,316.91, 28,026.06 and 11,818.08 is: 16,302.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,316.91 : 28,026.06 = 11,818.08 : x
  2. Step 2: Convert to fraction form
    20,316.91/28,026.06 = 11,818.08/x
  3. Step 3: Cross multiply
    20,316.91x = 28,026.06 × 11,818.08
  4. Step 4: Simplify right side
    20,316.91x = 331,214,219.16
  5. Step 5: Solve for x
    x = 331,214,219.16/20,316.91
  6. Step 6: Final answer
    x = 16,302.39

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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.