Home / 35,420.36-48,863.27-21,987.32

Finding the Fourth Proportional to 35,420.36, 48,863.27 and 21,987.32

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Solution

The fourth proportional to 35,420.36, 48,863.27 and 21,987.32 is: 30,332.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,420.36 : 48,863.27 = 21,987.32 : x
  2. Step 2: Convert to fraction form
    35,420.36/48,863.27 = 21,987.32/x
  3. Step 3: Cross multiply
    35,420.36x = 48,863.27 × 21,987.32
  4. Step 4: Simplify right side
    35,420.36x = 1,074,372,243.80
  5. Step 5: Solve for x
    x = 1,074,372,243.80/35,420.36
  6. Step 6: Final answer
    x = 30,332.05

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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.