Home / 27,355.61-37,775.63-20,629.73

Finding the Fourth Proportional to 27,355.61, 37,775.63 and 20,629.73

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Solution

The fourth proportional to 27,355.61, 37,775.63 and 20,629.73 is: 28,487.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,355.61 : 37,775.63 = 20,629.73 : x
  2. Step 2: Convert to fraction form
    27,355.61/37,775.63 = 20,629.73/x
  3. Step 3: Cross multiply
    27,355.61x = 37,775.63 × 20,629.73
  4. Step 4: Simplify right side
    27,355.61x = 779,301,047.48
  5. Step 5: Solve for x
    x = 779,301,047.48/27,355.61
  6. Step 6: Final answer
    x = 28,487.80

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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.