Home / 38,213.79-52,735.14-21,218.07

Finding the Fourth Proportional to 38,213.79, 52,735.14 and 21,218.07

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Solution

The fourth proportional to 38,213.79, 52,735.14 and 21,218.07 is: 29,281.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,213.79 : 52,735.14 = 21,218.07 : x
  2. Step 2: Convert to fraction form
    38,213.79/52,735.14 = 21,218.07/x
  3. Step 3: Cross multiply
    38,213.79x = 52,735.14 × 21,218.07
  4. Step 4: Simplify right side
    38,213.79x = 1,118,937,891.98
  5. Step 5: Solve for x
    x = 1,118,937,891.98/38,213.79
  6. Step 6: Final answer
    x = 29,281.00

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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.