Home / 37,420.95-51,640.50-20,425.05

Finding the Fourth Proportional to 37,420.95, 51,640.50 and 20,425.05

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Solution

The fourth proportional to 37,420.95, 51,640.50 and 20,425.05 is: 28,186.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,420.95 : 51,640.50 = 20,425.05 : x
  2. Step 2: Convert to fraction form
    37,420.95/51,640.50 = 20,425.05/x
  3. Step 3: Cross multiply
    37,420.95x = 51,640.50 × 20,425.05
  4. Step 4: Simplify right side
    37,420.95x = 1,054,759,794.53
  5. Step 5: Solve for x
    x = 1,054,759,794.53/37,420.95
  6. Step 6: Final answer
    x = 28,186.34

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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.