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Finding the Fourth Proportional to 38,598.63, 53,264.30 and 21,828.39

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Solution

The fourth proportional to 38,598.63, 53,264.30 and 21,828.39 is: 30,122.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,598.63 : 53,264.30 = 21,828.39 : x
  2. Step 2: Convert to fraction form
    38,598.63/53,264.30 = 21,828.39/x
  3. Step 3: Cross multiply
    38,598.63x = 53,264.30 × 21,828.39
  4. Step 4: Simplify right side
    38,598.63x = 1,162,673,804.34
  5. Step 5: Solve for x
    x = 1,162,673,804.34/38,598.63
  6. Step 6: Final answer
    x = 30,122.15

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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.