Home / 39,051.10-53,890.67-21,146.12

Finding the Fourth Proportional to 39,051.10, 53,890.67 and 21,146.12

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Solution

The fourth proportional to 39,051.10, 53,890.67 and 21,146.12 is: 29,181.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,051.10 : 53,890.67 = 21,146.12 : x
  2. Step 2: Convert to fraction form
    39,051.10/53,890.67 = 21,146.12/x
  3. Step 3: Cross multiply
    39,051.10x = 53,890.67 × 21,146.12
  4. Step 4: Simplify right side
    39,051.10x = 1,139,578,574.70
  5. Step 5: Solve for x
    x = 1,139,578,574.70/39,051.10
  6. Step 6: Final answer
    x = 29,181.73

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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.