Home / 39,533.47-54,557.35-21,629.53

Finding the Fourth Proportional to 39,533.47, 54,557.35 and 21,629.53

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Solution

The fourth proportional to 39,533.47, 54,557.35 and 21,629.53 is: 29,849.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,533.47 : 54,557.35 = 21,629.53 : x
  2. Step 2: Convert to fraction form
    39,533.47/54,557.35 = 21,629.53/x
  3. Step 3: Cross multiply
    39,533.47x = 54,557.35 × 21,629.53
  4. Step 4: Simplify right side
    39,533.47x = 1,180,049,852.67
  5. Step 5: Solve for x
    x = 1,180,049,852.67/39,533.47
  6. Step 6: Final answer
    x = 29,849.39

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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.