Home / 28,310.76-39,068.84-15,735.52

Finding the Fourth Proportional to 28,310.76, 39,068.84 and 15,735.52

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Solution

The fourth proportional to 28,310.76, 39,068.84 and 15,735.52 is: 21,715.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,310.76 : 39,068.84 = 15,735.52 : x
  2. Step 2: Convert to fraction form
    28,310.76/39,068.84 = 15,735.52/x
  3. Step 3: Cross multiply
    28,310.76x = 39,068.84 × 15,735.52
  4. Step 4: Simplify right side
    28,310.76x = 614,768,513.20
  5. Step 5: Solve for x
    x = 614,768,513.20/28,310.76
  6. Step 6: Final answer
    x = 21,715.01

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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.