Home / 28,573.95-39,432.02-15,998.79

Finding the Fourth Proportional to 28,573.95, 39,432.02 and 15,998.79

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Solution

The fourth proportional to 28,573.95, 39,432.02 and 15,998.79 is: 22,078.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,573.95 : 39,432.02 = 15,998.79 : x
  2. Step 2: Convert to fraction form
    28,573.95/39,432.02 = 15,998.79/x
  3. Step 3: Cross multiply
    28,573.95x = 39,432.02 × 15,998.79
  4. Step 4: Simplify right side
    28,573.95x = 630,864,527.26
  5. Step 5: Solve for x
    x = 630,864,527.26/28,573.95
  6. Step 6: Final answer
    x = 22,078.31

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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.