Home / 38,768.65-53,502.03-21,775.89

Finding the Fourth Proportional to 38,768.65, 53,502.03 and 21,775.89

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Solution

The fourth proportional to 38,768.65, 53,502.03 and 21,775.89 is: 30,051.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,768.65 : 53,502.03 = 21,775.89 : x
  2. Step 2: Convert to fraction form
    38,768.65/53,502.03 = 21,775.89/x
  3. Step 3: Cross multiply
    38,768.65x = 53,502.03 × 21,775.89
  4. Step 4: Simplify right side
    38,768.65x = 1,165,054,320.06
  5. Step 5: Solve for x
    x = 1,165,054,320.06/38,768.65
  6. Step 6: Final answer
    x = 30,051.45

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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.