Home / 28,572.98-39,435.51-16,643.39

Finding the Fourth Proportional to 28,572.98, 39,435.51 and 16,643.39

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Solution

The fourth proportional to 28,572.98, 39,435.51 and 16,643.39 is: 22,970.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,572.98 : 39,435.51 = 16,643.39 : x
  2. Step 2: Convert to fraction form
    28,572.98/39,435.51 = 16,643.39/x
  3. Step 3: Cross multiply
    28,572.98x = 39,435.51 × 16,643.39
  4. Step 4: Simplify right side
    28,572.98x = 656,340,375.60
  5. Step 5: Solve for x
    x = 656,340,375.60/28,572.98
  6. Step 6: Final answer
    x = 22,970.67

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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.