Home / 38,909.64-53,695.62-22,143.72

Finding the Fourth Proportional to 38,909.64, 53,695.62 and 22,143.72

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Solution

The fourth proportional to 38,909.64, 53,695.62 and 22,143.72 is: 30,558.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,909.64 : 53,695.62 = 22,143.72 : x
  2. Step 2: Convert to fraction form
    38,909.64/53,695.62 = 22,143.72/x
  3. Step 3: Cross multiply
    38,909.64x = 53,695.62 × 22,143.72
  4. Step 4: Simplify right side
    38,909.64x = 1,189,020,774.51
  5. Step 5: Solve for x
    x = 1,189,020,774.51/38,909.64
  6. Step 6: Final answer
    x = 30,558.51

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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.