Home / 28,060.20-38,729.70-16,130.45

Finding the Fourth Proportional to 28,060.20, 38,729.70 and 16,130.45

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Solution

The fourth proportional to 28,060.20, 38,729.70 and 16,130.45 is: 22,263.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,060.20 : 38,729.70 = 16,130.45 : x
  2. Step 2: Convert to fraction form
    28,060.20/38,729.70 = 16,130.45/x
  3. Step 3: Cross multiply
    28,060.20x = 38,729.70 × 16,130.45
  4. Step 4: Simplify right side
    28,060.20x = 624,727,408.71
  5. Step 5: Solve for x
    x = 624,727,408.71/28,060.20
  6. Step 6: Final answer
    x = 22,263.83

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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.