Home / 29,281.72-40,409.09-15,853.26

Finding the Fourth Proportional to 29,281.72, 40,409.09 and 15,853.26

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Solution

The fourth proportional to 29,281.72, 40,409.09 and 15,853.26 is: 21,877.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,281.72 : 40,409.09 = 15,853.26 : x
  2. Step 2: Convert to fraction form
    29,281.72/40,409.09 = 15,853.26/x
  3. Step 3: Cross multiply
    29,281.72x = 40,409.09 × 15,853.26
  4. Step 4: Simplify right side
    29,281.72x = 640,615,849.77
  5. Step 5: Solve for x
    x = 640,615,849.77/29,281.72
  6. Step 6: Final answer
    x = 21,877.67

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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.