Home / 35,399.20-48,848.64-20,291.68

Finding the Fourth Proportional to 35,399.20, 48,848.64 and 20,291.68

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Solution

The fourth proportional to 35,399.20, 48,848.64 and 20,291.68 is: 28,001.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,399.20 : 48,848.64 = 20,291.68 : x
  2. Step 2: Convert to fraction form
    35,399.20/48,848.64 = 20,291.68/x
  3. Step 3: Cross multiply
    35,399.20x = 48,848.64 × 20,291.68
  4. Step 4: Simplify right side
    35,399.20x = 991,220,971.32
  5. Step 5: Solve for x
    x = 991,220,971.32/35,399.20
  6. Step 6: Final answer
    x = 28,001.23

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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.