Home / 39,323.81-54,266.94-21,418.76

Finding the Fourth Proportional to 39,323.81, 54,266.94 and 21,418.76

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Solution

The fourth proportional to 39,323.81, 54,266.94 and 21,418.76 is: 29,557.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,323.81 : 54,266.94 = 21,418.76 : x
  2. Step 2: Convert to fraction form
    39,323.81/54,266.94 = 21,418.76/x
  3. Step 3: Cross multiply
    39,323.81x = 54,266.94 × 21,418.76
  4. Step 4: Simplify right side
    39,323.81x = 1,162,330,699.46
  5. Step 5: Solve for x
    x = 1,162,330,699.46/39,323.81
  6. Step 6: Final answer
    x = 29,557.94

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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.