Home / 38,629.87-53,312.62-21,633.85

Finding the Fourth Proportional to 38,629.87, 53,312.62 and 21,633.85

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Solution

The fourth proportional to 38,629.87, 53,312.62 and 21,633.85 is: 29,856.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,629.87 : 53,312.62 = 21,633.85 : x
  2. Step 2: Convert to fraction form
    38,629.87/53,312.62 = 21,633.85/x
  3. Step 3: Cross multiply
    38,629.87x = 53,312.62 × 21,633.85
  4. Step 4: Simplify right side
    38,629.87x = 1,153,357,224.19
  5. Step 5: Solve for x
    x = 1,153,357,224.19/38,629.87
  6. Step 6: Final answer
    x = 29,856.62

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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.