Home / 37,389.60-51,589.20-21,465.60

Finding the Fourth Proportional to 37,389.60, 51,589.20 and 21,465.60

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Solution

The fourth proportional to 37,389.60, 51,589.20 and 21,465.60 is: 29,617.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,389.60 : 51,589.20 = 21,465.60 : x
  2. Step 2: Convert to fraction form
    37,389.60/51,589.20 = 21,465.60/x
  3. Step 3: Cross multiply
    37,389.60x = 51,589.20 × 21,465.60
  4. Step 4: Simplify right side
    37,389.60x = 1,107,393,131.52
  5. Step 5: Solve for x
    x = 1,107,393,131.52/37,389.60
  6. Step 6: Final answer
    x = 29,617.68

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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.