Home / 30,303.18-45,440.19-12,763.44

Finding the Fourth Proportional to 30,303.18, 45,440.19 and 12,763.44

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Solution

The fourth proportional to 30,303.18, 45,440.19 and 12,763.44 is: 19,139.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,303.18 : 45,440.19 = 12,763.44 : x
  2. Step 2: Convert to fraction form
    30,303.18/45,440.19 = 12,763.44/x
  3. Step 3: Cross multiply
    30,303.18x = 45,440.19 × 12,763.44
  4. Step 4: Simplify right side
    30,303.18x = 579,973,138.65
  5. Step 5: Solve for x
    x = 579,973,138.65/30,303.18
  6. Step 6: Final answer
    x = 19,139.02

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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.