Home / 39,072.34-53,919.57-21,166.93

Finding the Fourth Proportional to 39,072.34, 53,919.57 and 21,166.93

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Solution

The fourth proportional to 39,072.34, 53,919.57 and 21,166.93 is: 29,210.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,072.34 : 53,919.57 = 21,166.93 : x
  2. Step 2: Convert to fraction form
    39,072.34/53,919.57 = 21,166.93/x
  3. Step 3: Cross multiply
    39,072.34x = 53,919.57 × 21,166.93
  4. Step 4: Simplify right side
    39,072.34x = 1,141,311,763.82
  5. Step 5: Solve for x
    x = 1,141,311,763.82/39,072.34
  6. Step 6: Final answer
    x = 29,210.22

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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.