Home / 38,699.13-53,407.12-21,704.37

Finding the Fourth Proportional to 38,699.13, 53,407.12 and 21,704.37

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Solution

The fourth proportional to 38,699.13, 53,407.12 and 21,704.37 is: 29,953.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,699.13 : 53,407.12 = 21,704.37 : x
  2. Step 2: Convert to fraction form
    38,699.13/53,407.12 = 21,704.37/x
  3. Step 3: Cross multiply
    38,699.13x = 53,407.12 × 21,704.37
  4. Step 4: Simplify right side
    38,699.13x = 1,159,168,080.89
  5. Step 5: Solve for x
    x = 1,159,168,080.89/38,699.13
  6. Step 6: Final answer
    x = 29,953.34

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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.