Home / 28,266.08-39,007.34-15,693.28

Finding the Fourth Proportional to 28,266.08, 39,007.34 and 15,693.28

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Solution

The fourth proportional to 28,266.08, 39,007.34 and 15,693.28 is: 21,656.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,266.08 : 39,007.34 = 15,693.28 : x
  2. Step 2: Convert to fraction form
    28,266.08/39,007.34 = 15,693.28/x
  3. Step 3: Cross multiply
    28,266.08x = 39,007.34 × 15,693.28
  4. Step 4: Simplify right side
    28,266.08x = 612,153,108.68
  5. Step 5: Solve for x
    x = 612,153,108.68/28,266.08
  6. Step 6: Final answer
    x = 21,656.81

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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.