Home / 28,592.90-39,457.73-15,672.05

Finding the Fourth Proportional to 28,592.90, 39,457.73 and 15,672.05

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Solution

The fourth proportional to 28,592.90, 39,457.73 and 15,672.05 is: 21,627.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,592.90 : 39,457.73 = 15,672.05 : x
  2. Step 2: Convert to fraction form
    28,592.90/39,457.73 = 15,672.05/x
  3. Step 3: Cross multiply
    28,592.90x = 39,457.73 × 15,672.05
  4. Step 4: Simplify right side
    28,592.90x = 618,383,439.09
  5. Step 5: Solve for x
    x = 618,383,439.09/28,592.90
  6. Step 6: Final answer
    x = 21,627.17

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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.