Home / 30,730.58-42,408.99-17,302.32

Finding the Fourth Proportional to 30,730.58, 42,408.99 and 17,302.32

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Solution

The fourth proportional to 30,730.58, 42,408.99 and 17,302.32 is: 23,877.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,730.58 : 42,408.99 = 17,302.32 : x
  2. Step 2: Convert to fraction form
    30,730.58/42,408.99 = 17,302.32/x
  3. Step 3: Cross multiply
    30,730.58x = 42,408.99 × 17,302.32
  4. Step 4: Simplify right side
    30,730.58x = 733,773,915.86
  5. Step 5: Solve for x
    x = 733,773,915.86/30,730.58
  6. Step 6: Final answer
    x = 23,877.65

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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.