Home / 36,011.15-49,699.87-20,900.55

Finding the Fourth Proportional to 36,011.15, 49,699.87 and 20,900.55

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Solution

The fourth proportional to 36,011.15, 49,699.87 and 20,900.55 is: 28,845.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,011.15 : 49,699.87 = 20,900.55 : x
  2. Step 2: Convert to fraction form
    36,011.15/49,699.87 = 20,900.55/x
  3. Step 3: Cross multiply
    36,011.15x = 49,699.87 × 20,900.55
  4. Step 4: Simplify right side
    36,011.15x = 1,038,754,565.68
  5. Step 5: Solve for x
    x = 1,038,754,565.68/36,011.15
  6. Step 6: Final answer
    x = 28,845.36

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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.