Home / 38,926.16-53,718.10-21,021.17

Finding the Fourth Proportional to 38,926.16, 53,718.10 and 21,021.17

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Solution

The fourth proportional to 38,926.16, 53,718.10 and 21,021.17 is: 29,009.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,926.16 : 53,718.10 = 21,021.17 : x
  2. Step 2: Convert to fraction form
    38,926.16/53,718.10 = 21,021.17/x
  3. Step 3: Cross multiply
    38,926.16x = 53,718.10 × 21,021.17
  4. Step 4: Simplify right side
    38,926.16x = 1,129,217,043.59
  5. Step 5: Solve for x
    x = 1,129,217,043.59/38,926.16
  6. Step 6: Final answer
    x = 29,009.21

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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.