Home / 30,850.53-42,573.90-16,703.40

Finding the Fourth Proportional to 30,850.53, 42,573.90 and 16,703.40

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Solution

The fourth proportional to 30,850.53, 42,573.90 and 16,703.40 is: 23,050.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,850.53 : 42,573.90 = 16,703.40 : x
  2. Step 2: Convert to fraction form
    30,850.53/42,573.90 = 16,703.40/x
  3. Step 3: Cross multiply
    30,850.53x = 42,573.90 × 16,703.40
  4. Step 4: Simplify right side
    30,850.53x = 711,128,881.26
  5. Step 5: Solve for x
    x = 711,128,881.26/30,850.53
  6. Step 6: Final answer
    x = 23,050.78

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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.