Home / 28,573.30-39,430.02-15,997.78

Finding the Fourth Proportional to 28,573.30, 39,430.02 and 15,997.78

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Solution

The fourth proportional to 28,573.30, 39,430.02 and 15,997.78 is: 22,076.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,573.30 : 39,430.02 = 15,997.78 : x
  2. Step 2: Convert to fraction form
    28,573.30/39,430.02 = 15,997.78/x
  3. Step 3: Cross multiply
    28,573.30x = 39,430.02 × 15,997.78
  4. Step 4: Simplify right side
    28,573.30x = 630,792,785.36
  5. Step 5: Solve for x
    x = 630,792,785.36/28,573.30
  6. Step 6: Final answer
    x = 22,076.30

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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.