Home / 28,573.04-39,430.74-15,997.79

Finding the Fourth Proportional to 28,573.04, 39,430.74 and 15,997.79

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Solution

The fourth proportional to 28,573.04, 39,430.74 and 15,997.79 is: 22,076.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,573.04 : 39,430.74 = 15,997.79 : x
  2. Step 2: Convert to fraction form
    28,573.04/39,430.74 = 15,997.79/x
  3. Step 3: Cross multiply
    28,573.04x = 39,430.74 × 15,997.79
  4. Step 4: Simplify right side
    28,573.04x = 630,804,500.91
  5. Step 5: Solve for x
    x = 630,804,500.91/28,573.04
  6. Step 6: Final answer
    x = 22,076.92

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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.