Home / 38,429.63-53,032.77-21,433.89

Finding the Fourth Proportional to 38,429.63, 53,032.77 and 21,433.89

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Solution

The fourth proportional to 38,429.63, 53,032.77 and 21,433.89 is: 29,578.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,429.63 : 53,032.77 = 21,433.89 : x
  2. Step 2: Convert to fraction form
    38,429.63/53,032.77 = 21,433.89/x
  3. Step 3: Cross multiply
    38,429.63x = 53,032.77 × 21,433.89
  4. Step 4: Simplify right side
    38,429.63x = 1,136,698,558.58
  5. Step 5: Solve for x
    x = 1,136,698,558.58/38,429.63
  6. Step 6: Final answer
    x = 29,578.70

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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.