Home / 28,574.84-39,433.20-15,999.56

Finding the Fourth Proportional to 28,574.84, 39,433.20 and 15,999.56

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Solution

The fourth proportional to 28,574.84, 39,433.20 and 15,999.56 is: 22,079.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,574.84 : 39,433.20 = 15,999.56 : x
  2. Step 2: Convert to fraction form
    28,574.84/39,433.20 = 15,999.56/x
  3. Step 3: Cross multiply
    28,574.84x = 39,433.20 × 15,999.56
  4. Step 4: Simplify right side
    28,574.84x = 630,913,849.39
  5. Step 5: Solve for x
    x = 630,913,849.39/28,574.84
  6. Step 6: Final answer
    x = 22,079.35

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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.