Home / 38,926.66-53,718.79-21,021.67

Finding the Fourth Proportional to 38,926.66, 53,718.79 and 21,021.67

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Solution

The fourth proportional to 38,926.66, 53,718.79 and 21,021.67 is: 29,009.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,926.66 : 53,718.79 = 21,021.67 : x
  2. Step 2: Convert to fraction form
    38,926.66/53,718.79 = 21,021.67/x
  3. Step 3: Cross multiply
    38,926.66x = 53,718.79 × 21,021.67
  4. Step 4: Simplify right side
    38,926.66x = 1,129,258,576.92
  5. Step 5: Solve for x
    x = 1,129,258,576.92/38,926.66
  6. Step 6: Final answer
    x = 29,009.90

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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.