Home / 29,277.18-40,402.78-15,848.69

Finding the Fourth Proportional to 29,277.18, 40,402.78 and 15,848.69

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Solution

The fourth proportional to 29,277.18, 40,402.78 and 15,848.69 is: 21,871.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,277.18 : 40,402.78 = 15,848.69 : x
  2. Step 2: Convert to fraction form
    29,277.18/40,402.78 = 15,848.69/x
  3. Step 3: Cross multiply
    29,277.18x = 40,402.78 × 15,848.69
  4. Step 4: Simplify right side
    29,277.18x = 640,331,135.36
  5. Step 5: Solve for x
    x = 640,331,135.36/29,277.18
  6. Step 6: Final answer
    x = 21,871.34

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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.