Home / 39,400.67-54,373.32-21,495.74

Finding the Fourth Proportional to 39,400.67, 54,373.32 and 21,495.74

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Solution

The fourth proportional to 39,400.67, 54,373.32 and 21,495.74 is: 29,664.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,400.67 : 54,373.32 = 21,495.74 : x
  2. Step 2: Convert to fraction form
    39,400.67/54,373.32 = 21,495.74/x
  3. Step 3: Cross multiply
    39,400.67x = 54,373.32 × 21,495.74
  4. Step 4: Simplify right side
    39,400.67x = 1,168,794,477.79
  5. Step 5: Solve for x
    x = 1,168,794,477.79/39,400.67
  6. Step 6: Final answer
    x = 29,664.33

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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.