Home / 36,390.90-50,215.86-20,475

Finding the Fourth Proportional to 36,390.90, 50,215.86 and 20,475

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Solution

The fourth proportional to 36,390.90, 50,215.86 and 20,475 is: 28,253.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,390.90 : 50,215.86 = 20,475 : x
  2. Step 2: Convert to fraction form
    36,390.90/50,215.86 = 20,475/x
  3. Step 3: Cross multiply
    36,390.90x = 50,215.86 × 20,475
  4. Step 4: Simplify right side
    36,390.90x = 1,028,169,733.50
  5. Step 5: Solve for x
    x = 1,028,169,733.50/36,390.90
  6. Step 6: Final answer
    x = 28,253.48

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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.