Home / 39,028.85-53,859.90-21,124.01

Finding the Fourth Proportional to 39,028.85, 53,859.90 and 21,124.01

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Solution

The fourth proportional to 39,028.85, 53,859.90 and 21,124.01 is: 29,151.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,028.85 : 53,859.90 = 21,124.01 : x
  2. Step 2: Convert to fraction form
    39,028.85/53,859.90 = 21,124.01/x
  3. Step 3: Cross multiply
    39,028.85x = 53,859.90 × 21,124.01
  4. Step 4: Simplify right side
    39,028.85x = 1,137,737,066.20
  5. Step 5: Solve for x
    x = 1,137,737,066.20/39,028.85
  6. Step 6: Final answer
    x = 29,151.18

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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.