Home / 35,815.51-49,431.49-20,717.35

Finding the Fourth Proportional to 35,815.51, 49,431.49 and 20,717.35

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Solution

The fourth proportional to 35,815.51, 49,431.49 and 20,717.35 is: 28,593.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,815.51 : 49,431.49 = 20,717.35 : x
  2. Step 2: Convert to fraction form
    35,815.51/49,431.49 = 20,717.35/x
  3. Step 3: Cross multiply
    35,815.51x = 49,431.49 × 20,717.35
  4. Step 4: Simplify right side
    35,815.51x = 1,024,089,479.35
  5. Step 5: Solve for x
    x = 1,024,089,479.35/35,815.51
  6. Step 6: Final answer
    x = 28,593.46

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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.