Home / 37,430.42-51,651.78-20,431.29

Finding the Fourth Proportional to 37,430.42, 51,651.78 and 20,431.29

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Solution

The fourth proportional to 37,430.42, 51,651.78 and 20,431.29 is: 28,193.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,430.42 : 51,651.78 = 20,431.29 : x
  2. Step 2: Convert to fraction form
    37,430.42/51,651.78 = 20,431.29/x
  3. Step 3: Cross multiply
    37,430.42x = 51,651.78 × 20,431.29
  4. Step 4: Simplify right side
    37,430.42x = 1,055,312,496.20
  5. Step 5: Solve for x
    x = 1,055,312,496.20/37,430.42
  6. Step 6: Final answer
    x = 28,193.98

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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.