Home / 38,701.32-53,405.10-21,704.28

Finding the Fourth Proportional to 38,701.32, 53,405.10 and 21,704.28

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Solution

The fourth proportional to 38,701.32, 53,405.10 and 21,704.28 is: 29,950.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,701.32 : 53,405.10 = 21,704.28 : x
  2. Step 2: Convert to fraction form
    38,701.32/53,405.10 = 21,704.28/x
  3. Step 3: Cross multiply
    38,701.32x = 53,405.10 × 21,704.28
  4. Step 4: Simplify right side
    38,701.32x = 1,159,119,243.83
  5. Step 5: Solve for x
    x = 1,159,119,243.83/38,701.32
  6. Step 6: Final answer
    x = 29,950.38

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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.