Home / 28,281.30-39,023.84-16,342.34

Finding the Fourth Proportional to 28,281.30, 39,023.84 and 16,342.34

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Solution

The fourth proportional to 28,281.30, 39,023.84 and 16,342.34 is: 22,549.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,281.30 : 39,023.84 = 16,342.34 : x
  2. Step 2: Convert to fraction form
    28,281.30/39,023.84 = 16,342.34/x
  3. Step 3: Cross multiply
    28,281.30x = 39,023.84 × 16,342.34
  4. Step 4: Simplify right side
    28,281.30x = 637,740,584.55
  5. Step 5: Solve for x
    x = 637,740,584.55/28,281.30
  6. Step 6: Final answer
    x = 22,549.90

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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.