Home / 38,621.48-53,302.67-21,632.21

Finding the Fourth Proportional to 38,621.48, 53,302.67 and 21,632.21

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Solution

The fourth proportional to 38,621.48, 53,302.67 and 21,632.21 is: 29,855.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,621.48 : 53,302.67 = 21,632.21 : x
  2. Step 2: Convert to fraction form
    38,621.48/53,302.67 = 21,632.21/x
  3. Step 3: Cross multiply
    38,621.48x = 53,302.67 × 21,632.21
  4. Step 4: Simplify right side
    38,621.48x = 1,153,054,442.84
  5. Step 5: Solve for x
    x = 1,153,054,442.84/38,621.48
  6. Step 6: Final answer
    x = 29,855.27

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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.