Home / 28,572.75-39,430.53-15,997.50

Finding the Fourth Proportional to 28,572.75, 39,430.53 and 15,997.50

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Solution

The fourth proportional to 28,572.75, 39,430.53 and 15,997.50 is: 22,076.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,572.75 : 39,430.53 = 15,997.50 : x
  2. Step 2: Convert to fraction form
    28,572.75/39,430.53 = 15,997.50/x
  3. Step 3: Cross multiply
    28,572.75x = 39,430.53 × 15,997.50
  4. Step 4: Simplify right side
    28,572.75x = 630,789,903.68
  5. Step 5: Solve for x
    x = 630,789,903.68/28,572.75
  6. Step 6: Final answer
    x = 22,076.63

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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.