Home / 30,223.04-45,288.37-12,683.30

Finding the Fourth Proportional to 30,223.04, 45,288.37 and 12,683.30

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Solution

The fourth proportional to 30,223.04, 45,288.37 and 12,683.30 is: 19,005.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,223.04 : 45,288.37 = 12,683.30 : x
  2. Step 2: Convert to fraction form
    30,223.04/45,288.37 = 12,683.30/x
  3. Step 3: Cross multiply
    30,223.04x = 45,288.37 × 12,683.30
  4. Step 4: Simplify right side
    30,223.04x = 574,405,983.22
  5. Step 5: Solve for x
    x = 574,405,983.22/30,223.04
  6. Step 6: Final answer
    x = 19,005.57

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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.