Home / 28,609.70-39,483.37-15,864.06

Finding the Fourth Proportional to 28,609.70, 39,483.37 and 15,864.06

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Solution

The fourth proportional to 28,609.70, 39,483.37 and 15,864.06 is: 21,893.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,609.70 : 39,483.37 = 15,864.06 : x
  2. Step 2: Convert to fraction form
    28,609.70/39,483.37 = 15,864.06/x
  3. Step 3: Cross multiply
    28,609.70x = 39,483.37 × 15,864.06
  4. Step 4: Simplify right side
    28,609.70x = 626,366,422.45
  5. Step 5: Solve for x
    x = 626,366,422.45/28,609.70
  6. Step 6: Final answer
    x = 21,893.50

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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.