Home / 28,955.34-39,960.36-16,209.72

Finding the Fourth Proportional to 28,955.34, 39,960.36 and 16,209.72

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Solution

The fourth proportional to 28,955.34, 39,960.36 and 16,209.72 is: 22,370.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,955.34 : 39,960.36 = 16,209.72 : x
  2. Step 2: Convert to fraction form
    28,955.34/39,960.36 = 16,209.72/x
  3. Step 3: Cross multiply
    28,955.34x = 39,960.36 × 16,209.72
  4. Step 4: Simplify right side
    28,955.34x = 647,746,246.70
  5. Step 5: Solve for x
    x = 647,746,246.70/28,955.34
  6. Step 6: Final answer
    x = 22,370.53

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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.