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Finding the Fourth Proportional to 29,295, 40,427.26 and 15,866.29

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Solution

The fourth proportional to 29,295, 40,427.26 and 15,866.29 is: 21,895.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,295 : 40,427.26 = 15,866.29 : x
  2. Step 2: Convert to fraction form
    29,295/40,427.26 = 15,866.29/x
  3. Step 3: Cross multiply
    29,295x = 40,427.26 × 15,866.29
  4. Step 4: Simplify right side
    29,295x = 641,430,641.93
  5. Step 5: Solve for x
    x = 641,430,641.93/29,295
  6. Step 6: Final answer
    x = 21,895.57

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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.