Home / 30,430.87-45,626.76-12,673.84

Finding the Fourth Proportional to 30,430.87, 45,626.76 and 12,673.84

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Solution

The fourth proportional to 30,430.87, 45,626.76 and 12,673.84 is: 19,002.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,430.87 : 45,626.76 = 12,673.84 : x
  2. Step 2: Convert to fraction form
    30,430.87/45,626.76 = 12,673.84/x
  3. Step 3: Cross multiply
    30,430.87x = 45,626.76 × 12,673.84
  4. Step 4: Simplify right side
    30,430.87x = 578,266,255.96
  5. Step 5: Solve for x
    x = 578,266,255.96/30,430.87
  6. Step 6: Final answer
    x = 19,002.62

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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.