Home / 30,223.48-45,289.03-12,683.74

Finding the Fourth Proportional to 30,223.48, 45,289.03 and 12,683.74

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Solution

The fourth proportional to 30,223.48, 45,289.03 and 12,683.74 is: 19,006.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,223.48 : 45,289.03 = 12,683.74 : x
  2. Step 2: Convert to fraction form
    30,223.48/45,289.03 = 12,683.74/x
  3. Step 3: Cross multiply
    30,223.48x = 45,289.03 × 12,683.74
  4. Step 4: Simplify right side
    30,223.48x = 574,434,281.37
  5. Step 5: Solve for x
    x = 574,434,281.37/30,223.48
  6. Step 6: Final answer
    x = 19,006.23

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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.