Home / 39,137.89-54,008.80-21,232.52

Finding the Fourth Proportional to 39,137.89, 54,008.80 and 21,232.52

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Solution

The fourth proportional to 39,137.89, 54,008.80 and 21,232.52 is: 29,300.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,137.89 : 54,008.80 = 21,232.52 : x
  2. Step 2: Convert to fraction form
    39,137.89/54,008.80 = 21,232.52/x
  3. Step 3: Cross multiply
    39,137.89x = 54,008.80 × 21,232.52
  4. Step 4: Simplify right side
    39,137.89x = 1,146,742,926.18
  5. Step 5: Solve for x
    x = 1,146,742,926.18/39,137.89
  6. Step 6: Final answer
    x = 29,300.07

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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.