Home / 37,782.45-52,140.91-20,788.45

Finding the Fourth Proportional to 37,782.45, 52,140.91 and 20,788.45

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Solution

The fourth proportional to 37,782.45, 52,140.91 and 20,788.45 is: 28,688.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,782.45 : 52,140.91 = 20,788.45 : x
  2. Step 2: Convert to fraction form
    37,782.45/52,140.91 = 20,788.45/x
  3. Step 3: Cross multiply
    37,782.45x = 52,140.91 × 20,788.45
  4. Step 4: Simplify right side
    37,782.45x = 1,083,928,700.49
  5. Step 5: Solve for x
    x = 1,083,928,700.49/37,782.45
  6. Step 6: Final answer
    x = 28,688.68

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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.