Home / 39,370.45-54,331.47-21,465.76

Finding the Fourth Proportional to 39,370.45, 54,331.47 and 21,465.76

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Solution

The fourth proportional to 39,370.45, 54,331.47 and 21,465.76 is: 29,622.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,370.45 : 54,331.47 = 21,465.76 : x
  2. Step 2: Convert to fraction form
    39,370.45/54,331.47 = 21,465.76/x
  3. Step 3: Cross multiply
    39,370.45x = 54,331.47 × 21,465.76
  4. Step 4: Simplify right side
    39,370.45x = 1,166,265,916.48
  5. Step 5: Solve for x
    x = 1,166,265,916.48/39,370.45
  6. Step 6: Final answer
    x = 29,622.87

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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.