Home / 30,626.59-42,263.62-18,709.87

Finding the Fourth Proportional to 30,626.59, 42,263.62 and 18,709.87

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Solution

The fourth proportional to 30,626.59, 42,263.62 and 18,709.87 is: 25,818.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,626.59 : 42,263.62 = 18,709.87 : x
  2. Step 2: Convert to fraction form
    30,626.59/42,263.62 = 18,709.87/x
  3. Step 3: Cross multiply
    30,626.59x = 42,263.62 × 18,709.87
  4. Step 4: Simplify right side
    30,626.59x = 790,746,835.93
  5. Step 5: Solve for x
    x = 790,746,835.93/30,626.59
  6. Step 6: Final answer
    x = 25,818.96

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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.