Home / 20,599.60-28,399.95-16,364.72

Finding the Fourth Proportional to 20,599.60, 28,399.95 and 16,364.72

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Solution

The fourth proportional to 20,599.60, 28,399.95 and 16,364.72 is: 22,561.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,599.60 : 28,399.95 = 16,364.72 : x
  2. Step 2: Convert to fraction form
    20,599.60/28,399.95 = 16,364.72/x
  3. Step 3: Cross multiply
    20,599.60x = 28,399.95 × 16,364.72
  4. Step 4: Simplify right side
    20,599.60x = 464,757,087.76
  5. Step 5: Solve for x
    x = 464,757,087.76/20,599.60
  6. Step 6: Final answer
    x = 22,561.46

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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.