Home / 37,686.07-52,004.18-20,917.75

Finding the Fourth Proportional to 37,686.07, 52,004.18 and 20,917.75

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Solution

The fourth proportional to 37,686.07, 52,004.18 and 20,917.75 is: 28,865.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,686.07 : 52,004.18 = 20,917.75 : x
  2. Step 2: Convert to fraction form
    37,686.07/52,004.18 = 20,917.75/x
  3. Step 3: Cross multiply
    37,686.07x = 52,004.18 × 20,917.75
  4. Step 4: Simplify right side
    37,686.07x = 1,087,810,331.61
  5. Step 5: Solve for x
    x = 1,087,810,331.61/37,686.07
  6. Step 6: Final answer
    x = 28,865.05

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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.