Home / 28,102.34-38,782.70-16,167.47

Finding the Fourth Proportional to 28,102.34, 38,782.70 and 16,167.47

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Solution

The fourth proportional to 28,102.34, 38,782.70 and 16,167.47 is: 22,311.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,102.34 : 38,782.70 = 16,167.47 : x
  2. Step 2: Convert to fraction form
    28,102.34/38,782.70 = 16,167.47/x
  3. Step 3: Cross multiply
    28,102.34x = 38,782.70 × 16,167.47
  4. Step 4: Simplify right side
    28,102.34x = 627,017,864.02
  5. Step 5: Solve for x
    x = 627,017,864.02/28,102.34
  6. Step 6: Final answer
    x = 22,311.95

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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.