Home / 30,909.34-42,657.01-17,480.60

Finding the Fourth Proportional to 30,909.34, 42,657.01 and 17,480.60

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Solution

The fourth proportional to 30,909.34, 42,657.01 and 17,480.60 is: 24,124.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,909.34 : 42,657.01 = 17,480.60 : x
  2. Step 2: Convert to fraction form
    30,909.34/42,657.01 = 17,480.60/x
  3. Step 3: Cross multiply
    30,909.34x = 42,657.01 × 17,480.60
  4. Step 4: Simplify right side
    30,909.34x = 745,670,031.98
  5. Step 5: Solve for x
    x = 745,670,031.98/30,909.34
  6. Step 6: Final answer
    x = 24,124.42

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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.