Home / 28,292.30-39,043.40-15,546.29

Finding the Fourth Proportional to 28,292.30, 39,043.40 and 15,546.29

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Solution

The fourth proportional to 28,292.30, 39,043.40 and 15,546.29 is: 21,453.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,292.30 : 39,043.40 = 15,546.29 : x
  2. Step 2: Convert to fraction form
    28,292.30/39,043.40 = 15,546.29/x
  3. Step 3: Cross multiply
    28,292.30x = 39,043.40 × 15,546.29
  4. Step 4: Simplify right side
    28,292.30x = 606,980,038.86
  5. Step 5: Solve for x
    x = 606,980,038.86/28,292.30
  6. Step 6: Final answer
    x = 21,453.90

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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.