Home / 21,392.24-29,529.40-19,150.08

Finding the Fourth Proportional to 21,392.24, 29,529.40 and 19,150.08

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Solution

The fourth proportional to 21,392.24, 29,529.40 and 19,150.08 is: 26,434.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,392.24 : 29,529.40 = 19,150.08 : x
  2. Step 2: Convert to fraction form
    21,392.24/29,529.40 = 19,150.08/x
  3. Step 3: Cross multiply
    21,392.24x = 29,529.40 × 19,150.08
  4. Step 4: Simplify right side
    21,392.24x = 565,490,372.35
  5. Step 5: Solve for x
    x = 565,490,372.35/21,392.24
  6. Step 6: Final answer
    x = 26,434.37

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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.