Home / 30,328.85-45,507.36-11,602.70

Finding the Fourth Proportional to 30,328.85, 45,507.36 and 11,602.70

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Solution

The fourth proportional to 30,328.85, 45,507.36 and 11,602.70 is: 17,409.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,328.85 : 45,507.36 = 11,602.70 : x
  2. Step 2: Convert to fraction form
    30,328.85/45,507.36 = 11,602.70/x
  3. Step 3: Cross multiply
    30,328.85x = 45,507.36 × 11,602.70
  4. Step 4: Simplify right side
    30,328.85x = 528,008,018.34
  5. Step 5: Solve for x
    x = 528,008,018.34/30,328.85
  6. Step 6: Final answer
    x = 17,409.43

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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.