Home / 38,434.88-53,040.55-21,440.57

Finding the Fourth Proportional to 38,434.88, 53,040.55 and 21,440.57

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Solution

The fourth proportional to 38,434.88, 53,040.55 and 21,440.57 is: 29,588.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,434.88 : 53,040.55 = 21,440.57 : x
  2. Step 2: Convert to fraction form
    38,434.88/53,040.55 = 21,440.57/x
  3. Step 3: Cross multiply
    38,434.88x = 53,040.55 × 21,440.57
  4. Step 4: Simplify right side
    38,434.88x = 1,137,219,625.11
  5. Step 5: Solve for x
    x = 1,137,219,625.11/38,434.88
  6. Step 6: Final answer
    x = 29,588.22

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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.