Home / 28,070.52-38,738.12-15,496.08

Finding the Fourth Proportional to 28,070.52, 38,738.12 and 15,496.08

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Solution

The fourth proportional to 28,070.52, 38,738.12 and 15,496.08 is: 21,385.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,070.52 : 38,738.12 = 15,496.08 : x
  2. Step 2: Convert to fraction form
    28,070.52/38,738.12 = 15,496.08/x
  3. Step 3: Cross multiply
    28,070.52x = 38,738.12 × 15,496.08
  4. Step 4: Simplify right side
    28,070.52x = 600,289,006.57
  5. Step 5: Solve for x
    x = 600,289,006.57/28,070.52
  6. Step 6: Final answer
    x = 21,385.03

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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.