Home / 28,715.63-39,626.33-15,969.66

Finding the Fourth Proportional to 28,715.63, 39,626.33 and 15,969.66

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Solution

The fourth proportional to 28,715.63, 39,626.33 and 15,969.66 is: 22,037.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,715.63 : 39,626.33 = 15,969.66 : x
  2. Step 2: Convert to fraction form
    28,715.63/39,626.33 = 15,969.66/x
  3. Step 3: Cross multiply
    28,715.63x = 39,626.33 × 15,969.66
  4. Step 4: Simplify right side
    28,715.63x = 632,818,937.30
  5. Step 5: Solve for x
    x = 632,818,937.30/28,715.63
  6. Step 6: Final answer
    x = 22,037.44

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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.