Home / 37,453.76-51,685.20-20,686.40

Finding the Fourth Proportional to 37,453.76, 51,685.20 and 20,686.40

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Solution

The fourth proportional to 37,453.76, 51,685.20 and 20,686.40 is: 28,546.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,453.76 : 51,685.20 = 20,686.40 : x
  2. Step 2: Convert to fraction form
    37,453.76/51,685.20 = 20,686.40/x
  3. Step 3: Cross multiply
    37,453.76x = 51,685.20 × 20,686.40
  4. Step 4: Simplify right side
    37,453.76x = 1,069,180,721.28
  5. Step 5: Solve for x
    x = 1,069,180,721.28/37,453.76
  6. Step 6: Final answer
    x = 28,546.69

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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.