Home / 38,510.48-53,143.88-21,514.97

Finding the Fourth Proportional to 38,510.48, 53,143.88 and 21,514.97

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Solution

The fourth proportional to 38,510.48, 53,143.88 and 21,514.97 is: 29,690.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,510.48 : 53,143.88 = 21,514.97 : x
  2. Step 2: Convert to fraction form
    38,510.48/53,143.88 = 21,514.97/x
  3. Step 3: Cross multiply
    38,510.48x = 53,143.88 × 21,514.97
  4. Step 4: Simplify right side
    38,510.48x = 1,143,389,009.17
  5. Step 5: Solve for x
    x = 1,143,389,009.17/38,510.48
  6. Step 6: Final answer
    x = 29,690.33

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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.