Home / 38,048.79-52,509.21-21,918.51

Finding the Fourth Proportional to 38,048.79, 52,509.21 and 21,918.51

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Solution

The fourth proportional to 38,048.79, 52,509.21 and 21,918.51 is: 30,248.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,048.79 : 52,509.21 = 21,918.51 : x
  2. Step 2: Convert to fraction form
    38,048.79/52,509.21 = 21,918.51/x
  3. Step 3: Cross multiply
    38,048.79x = 52,509.21 × 21,918.51
  4. Step 4: Simplify right side
    38,048.79x = 1,150,923,644.48
  5. Step 5: Solve for x
    x = 1,150,923,644.48/38,048.79
  6. Step 6: Final answer
    x = 30,248.63

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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.