Home / 39,830.67-54,965.90-21,925.31

Finding the Fourth Proportional to 39,830.67, 54,965.90 and 21,925.31

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Solution

The fourth proportional to 39,830.67, 54,965.90 and 21,925.31 is: 30,256.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,830.67 : 54,965.90 = 21,925.31 : x
  2. Step 2: Convert to fraction form
    39,830.67/54,965.90 = 21,925.31/x
  3. Step 3: Cross multiply
    39,830.67x = 54,965.90 × 21,925.31
  4. Step 4: Simplify right side
    39,830.67x = 1,205,144,012.47
  5. Step 5: Solve for x
    x = 1,205,144,012.47/39,830.67
  6. Step 6: Final answer
    x = 30,256.68

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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.