Home / 39,453.81-54,445.50-21,548.94

Finding the Fourth Proportional to 39,453.81, 54,445.50 and 21,548.94

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Solution

The fourth proportional to 39,453.81, 54,445.50 and 21,548.94 is: 29,737.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,453.81 : 54,445.50 = 21,548.94 : x
  2. Step 2: Convert to fraction form
    39,453.81/54,445.50 = 21,548.94/x
  3. Step 3: Cross multiply
    39,453.81x = 54,445.50 × 21,548.94
  4. Step 4: Simplify right side
    39,453.81x = 1,173,242,812.77
  5. Step 5: Solve for x
    x = 1,173,242,812.77/39,453.81
  6. Step 6: Final answer
    x = 29,737.12

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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.