Home / 28,373.76-39,157.56-16,440.84

Finding the Fourth Proportional to 28,373.76, 39,157.56 and 16,440.84

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Solution

The fourth proportional to 28,373.76, 39,157.56 and 16,440.84 is: 22,689.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,373.76 : 39,157.56 = 16,440.84 : x
  2. Step 2: Convert to fraction form
    28,373.76/39,157.56 = 16,440.84/x
  3. Step 3: Cross multiply
    28,373.76x = 39,157.56 × 16,440.84
  4. Step 4: Simplify right side
    28,373.76x = 643,783,178.75
  5. Step 5: Solve for x
    x = 643,783,178.75/28,373.76
  6. Step 6: Final answer
    x = 22,689.39

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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.