Home / 39,053.70-53,894.16-21,148.73

Finding the Fourth Proportional to 39,053.70, 53,894.16 and 21,148.73

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Solution

The fourth proportional to 39,053.70, 53,894.16 and 21,148.73 is: 29,185.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,053.70 : 53,894.16 = 21,148.73 : x
  2. Step 2: Convert to fraction form
    39,053.70/53,894.16 = 21,148.73/x
  3. Step 3: Cross multiply
    39,053.70x = 53,894.16 × 21,148.73
  4. Step 4: Simplify right side
    39,053.70x = 1,139,793,038.42
  5. Step 5: Solve for x
    x = 1,139,793,038.42/39,053.70
  6. Step 6: Final answer
    x = 29,185.28

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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.