Home / 39,037.64-53,871.93-21,132.81

Finding the Fourth Proportional to 39,037.64, 53,871.93 and 21,132.81

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Solution

The fourth proportional to 39,037.64, 53,871.93 and 21,132.81 is: 29,163.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,037.64 : 53,871.93 = 21,132.81 : x
  2. Step 2: Convert to fraction form
    39,037.64/53,871.93 = 21,132.81/x
  3. Step 3: Cross multiply
    39,037.64x = 53,871.93 × 21,132.81
  4. Step 4: Simplify right side
    39,037.64x = 1,138,465,261.02
  5. Step 5: Solve for x
    x = 1,138,465,261.02/39,037.64
  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.