Home / 36,905.63-50,929.49-20,990.06

Finding the Fourth Proportional to 36,905.63, 50,929.49 and 20,990.06

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Solution

The fourth proportional to 36,905.63, 50,929.49 and 20,990.06 is: 28,966.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,905.63 : 50,929.49 = 20,990.06 : x
  2. Step 2: Convert to fraction form
    36,905.63/50,929.49 = 20,990.06/x
  3. Step 3: Cross multiply
    36,905.63x = 50,929.49 × 20,990.06
  4. Step 4: Simplify right side
    36,905.63x = 1,069,012,691.27
  5. Step 5: Solve for x
    x = 1,069,012,691.27/36,905.63
  6. Step 6: Final answer
    x = 28,966.12

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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.