Home / 38,279.93-52,824.16-21,512.93

Finding the Fourth Proportional to 38,279.93, 52,824.16 and 21,512.93

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Solution

The fourth proportional to 38,279.93, 52,824.16 and 21,512.93 is: 29,686.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,279.93 : 52,824.16 = 21,512.93 : x
  2. Step 2: Convert to fraction form
    38,279.93/52,824.16 = 21,512.93/x
  3. Step 3: Cross multiply
    38,279.93x = 52,824.16 × 21,512.93
  4. Step 4: Simplify right side
    38,279.93x = 1,136,402,456.39
  5. Step 5: Solve for x
    x = 1,136,402,456.39/38,279.93
  6. Step 6: Final answer
    x = 29,686.64

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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.