Home / 38,995.23-53,813.41-21,090.23

Finding the Fourth Proportional to 38,995.23, 53,813.41 and 21,090.23

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Solution

The fourth proportional to 38,995.23, 53,813.41 and 21,090.23 is: 29,104.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,995.23 : 53,813.41 = 21,090.23 : x
  2. Step 2: Convert to fraction form
    38,995.23/53,813.41 = 21,090.23/x
  3. Step 3: Cross multiply
    38,995.23x = 53,813.41 × 21,090.23
  4. Step 4: Simplify right side
    38,995.23x = 1,134,937,193.98
  5. Step 5: Solve for x
    x = 1,134,937,193.98/38,995.23
  6. Step 6: Final answer
    x = 29,104.52

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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.