Home / 18,328.03-25,279.63-16,820.45

Finding the Fourth Proportional to 18,328.03, 25,279.63 and 16,820.45

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Solution

The fourth proportional to 18,328.03, 25,279.63 and 16,820.45 is: 23,200.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,328.03 : 25,279.63 = 16,820.45 : x
  2. Step 2: Convert to fraction form
    18,328.03/25,279.63 = 16,820.45/x
  3. Step 3: Cross multiply
    18,328.03x = 25,279.63 × 16,820.45
  4. Step 4: Simplify right side
    18,328.03x = 425,214,678.78
  5. Step 5: Solve for x
    x = 425,214,678.78/18,328.03
  6. Step 6: Final answer
    x = 23,200.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.