Home / 37,156.25-51,275.63-20,390.33

Finding the Fourth Proportional to 37,156.25, 51,275.63 and 20,390.33

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Solution

The fourth proportional to 37,156.25, 51,275.63 and 20,390.33 is: 28,138.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,156.25 : 51,275.63 = 20,390.33 : x
  2. Step 2: Convert to fraction form
    37,156.25/51,275.63 = 20,390.33/x
  3. Step 3: Cross multiply
    37,156.25x = 51,275.63 × 20,390.33
  4. Step 4: Simplify right side
    37,156.25x = 1,045,526,914.71
  5. Step 5: Solve for x
    x = 1,045,526,914.71/37,156.25
  6. Step 6: Final answer
    x = 28,138.66

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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.