Home / 37,485.18-51,728.02-21,570.20

Finding the Fourth Proportional to 37,485.18, 51,728.02 and 21,570.20

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Solution

The fourth proportional to 37,485.18, 51,728.02 and 21,570.20 is: 29,765.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,485.18 : 51,728.02 = 21,570.20 : x
  2. Step 2: Convert to fraction form
    37,485.18/51,728.02 = 21,570.20/x
  3. Step 3: Cross multiply
    37,485.18x = 51,728.02 × 21,570.20
  4. Step 4: Simplify right side
    37,485.18x = 1,115,783,618.42
  5. Step 5: Solve for x
    x = 1,115,783,618.42/37,485.18
  6. Step 6: Final answer
    x = 29,765.99

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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.