Home / 38,686.17-53,391.33-21,695.01

Finding the Fourth Proportional to 38,686.17, 53,391.33 and 21,695.01

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Solution

The fourth proportional to 38,686.17, 53,391.33 and 21,695.01 is: 29,941.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,686.17 : 53,391.33 = 21,695.01 : x
  2. Step 2: Convert to fraction form
    38,686.17/53,391.33 = 21,695.01/x
  3. Step 3: Cross multiply
    38,686.17x = 53,391.33 × 21,695.01
  4. Step 4: Simplify right side
    38,686.17x = 1,158,325,438.26
  5. Step 5: Solve for x
    x = 1,158,325,438.26/38,686.17
  6. Step 6: Final answer
    x = 29,941.59

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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.