Home / 37,430.42-51,651.77-20,431.28

Finding the Fourth Proportional to 37,430.42, 51,651.77 and 20,431.28

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Solution

The fourth proportional to 37,430.42, 51,651.77 and 20,431.28 is: 28,193.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,430.42 : 51,651.77 = 20,431.28 : x
  2. Step 2: Convert to fraction form
    37,430.42/51,651.77 = 20,431.28/x
  3. Step 3: Cross multiply
    37,430.42x = 51,651.77 × 20,431.28
  4. Step 4: Simplify right side
    37,430.42x = 1,055,311,802.34
  5. Step 5: Solve for x
    x = 1,055,311,802.34/37,430.42
  6. Step 6: Final answer
    x = 28,193.96

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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.