Home / 28,216.34-38,937.98-15,469.55

Finding the Fourth Proportional to 28,216.34, 38,937.98 and 15,469.55

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Solution

The fourth proportional to 28,216.34, 38,937.98 and 15,469.55 is: 21,347.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,216.34 : 38,937.98 = 15,469.55 : x
  2. Step 2: Convert to fraction form
    28,216.34/38,937.98 = 15,469.55/x
  3. Step 3: Cross multiply
    28,216.34x = 38,937.98 × 15,469.55
  4. Step 4: Simplify right side
    28,216.34x = 602,352,756.47
  5. Step 5: Solve for x
    x = 602,352,756.47/28,216.34
  6. Step 6: Final answer
    x = 21,347.66

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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.