Home / 28,749.35-39,666.14-17,261.28

Finding the Fourth Proportional to 28,749.35, 39,666.14 and 17,261.28

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Solution

The fourth proportional to 28,749.35, 39,666.14 and 17,261.28 is: 23,815.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,749.35 : 39,666.14 = 17,261.28 : x
  2. Step 2: Convert to fraction form
    28,749.35/39,666.14 = 17,261.28/x
  3. Step 3: Cross multiply
    28,749.35x = 39,666.14 × 17,261.28
  4. Step 4: Simplify right side
    28,749.35x = 684,688,327.48
  5. Step 5: Solve for x
    x = 684,688,327.48/28,749.35
  6. Step 6: Final answer
    x = 23,815.78

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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.