Home / 38,728.02-57,829.70-30,740.93

Finding the Fourth Proportional to 38,728.02, 57,829.70 and 30,740.93

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Solution

The fourth proportional to 38,728.02, 57,829.70 and 30,740.93 is: 45,903.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,728.02 : 57,829.70 = 30,740.93 : x
  2. Step 2: Convert to fraction form
    38,728.02/57,829.70 = 30,740.93/x
  3. Step 3: Cross multiply
    38,728.02x = 57,829.70 × 30,740.93
  4. Step 4: Simplify right side
    38,728.02x = 1,777,738,759.62
  5. Step 5: Solve for x
    x = 1,777,738,759.62/38,728.02
  6. Step 6: Final answer
    x = 45,903.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.