Home / 38,706.13-53,415.07-21,714.15

Finding the Fourth Proportional to 38,706.13, 53,415.07 and 21,714.15

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Solution

The fourth proportional to 38,706.13, 53,415.07 and 21,714.15 is: 29,965.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,706.13 : 53,415.07 = 21,714.15 : x
  2. Step 2: Convert to fraction form
    38,706.13/53,415.07 = 21,714.15/x
  3. Step 3: Cross multiply
    38,706.13x = 53,415.07 × 21,714.15
  4. Step 4: Simplify right side
    38,706.13x = 1,159,862,842.24
  5. Step 5: Solve for x
    x = 1,159,862,842.24/38,706.13
  6. Step 6: Final answer
    x = 29,965.87

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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.