Home / 30,464.10-42,040.57-17,720.34

Finding the Fourth Proportional to 30,464.10, 42,040.57 and 17,720.34

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Solution

The fourth proportional to 30,464.10, 42,040.57 and 17,720.34 is: 24,454.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,464.10 : 42,040.57 = 17,720.34 : x
  2. Step 2: Convert to fraction form
    30,464.10/42,040.57 = 17,720.34/x
  3. Step 3: Cross multiply
    30,464.10x = 42,040.57 × 17,720.34
  4. Step 4: Simplify right side
    30,464.10x = 744,973,194.19
  5. Step 5: Solve for x
    x = 744,973,194.19/30,464.10
  6. Step 6: Final answer
    x = 24,454.13

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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.