Home / 30,848.19-42,568.08-17,420.77

Finding the Fourth Proportional to 30,848.19, 42,568.08 and 17,420.77

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Solution

The fourth proportional to 30,848.19, 42,568.08 and 17,420.77 is: 24,039.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,848.19 : 42,568.08 = 17,420.77 : x
  2. Step 2: Convert to fraction form
    30,848.19/42,568.08 = 17,420.77/x
  3. Step 3: Cross multiply
    30,848.19x = 42,568.08 × 17,420.77
  4. Step 4: Simplify right side
    30,848.19x = 741,568,816.90
  5. Step 5: Solve for x
    x = 741,568,816.90/30,848.19
  6. Step 6: Final answer
    x = 24,039.30

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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.