Home / 39,032.90-53,865.54-21,127.88

Finding the Fourth Proportional to 39,032.90, 53,865.54 and 21,127.88

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Solution

The fourth proportional to 39,032.90, 53,865.54 and 21,127.88 is: 29,156.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,032.90 : 53,865.54 = 21,127.88 : x
  2. Step 2: Convert to fraction form
    39,032.90/53,865.54 = 21,127.88/x
  3. Step 3: Cross multiply
    39,032.90x = 53,865.54 × 21,127.88
  4. Step 4: Simplify right side
    39,032.90x = 1,138,064,799.92
  5. Step 5: Solve for x
    x = 1,138,064,799.92/39,032.90
  6. Step 6: Final answer
    x = 29,156.55

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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.