Home / 38,695.25-53,400.06-21,703.28

Finding the Fourth Proportional to 38,695.25, 53,400.06 and 21,703.28

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Solution

The fourth proportional to 38,695.25, 53,400.06 and 21,703.28 is: 29,950.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,695.25 : 53,400.06 = 21,703.28 : x
  2. Step 2: Convert to fraction form
    38,695.25/53,400.06 = 21,703.28/x
  3. Step 3: Cross multiply
    38,695.25x = 53,400.06 × 21,703.28
  4. Step 4: Simplify right side
    38,695.25x = 1,158,956,187.20
  5. Step 5: Solve for x
    x = 1,158,956,187.20/38,695.25
  6. Step 6: Final answer
    x = 29,950.86

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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.