Home / 30,276.90-45,415.35-18,596.70

Finding the Fourth Proportional to 30,276.90, 45,415.35 and 18,596.70

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Solution

The fourth proportional to 30,276.90, 45,415.35 and 18,596.70 is: 27,895.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,276.90 : 45,415.35 = 18,596.70 : x
  2. Step 2: Convert to fraction form
    30,276.90/45,415.35 = 18,596.70/x
  3. Step 3: Cross multiply
    30,276.90x = 45,415.35 × 18,596.70
  4. Step 4: Simplify right side
    30,276.90x = 844,575,639.35
  5. Step 5: Solve for x
    x = 844,575,639.35/30,276.90
  6. Step 6: Final answer
    x = 27,895.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.