Home / 37,455.20-51,688.18-20,688.20

Finding the Fourth Proportional to 37,455.20, 51,688.18 and 20,688.20

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Solution

The fourth proportional to 37,455.20, 51,688.18 and 20,688.20 is: 28,549.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,455.20 : 51,688.18 = 20,688.20 : x
  2. Step 2: Convert to fraction form
    37,455.20/51,688.18 = 20,688.20/x
  3. Step 3: Cross multiply
    37,455.20x = 51,688.18 × 20,688.20
  4. Step 4: Simplify right side
    37,455.20x = 1,069,335,405.48
  5. Step 5: Solve for x
    x = 1,069,335,405.48/37,455.20
  6. Step 6: Final answer
    x = 28,549.72

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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.