Home / 39,038.37-53,872.50-21,132.98

Finding the Fourth Proportional to 39,038.37, 53,872.50 and 21,132.98

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Solution

The fourth proportional to 39,038.37, 53,872.50 and 21,132.98 is: 29,163.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,038.37 : 53,872.50 = 21,132.98 : x
  2. Step 2: Convert to fraction form
    39,038.37/53,872.50 = 21,132.98/x
  3. Step 3: Cross multiply
    39,038.37x = 53,872.50 × 21,132.98
  4. Step 4: Simplify right side
    39,038.37x = 1,138,486,678.98
  5. Step 5: Solve for x
    x = 1,138,486,678.98/39,038.37
  6. Step 6: Final answer
    x = 29,163.27

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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.