Home / 28,018.34-38,662.20-16,686.26

Finding the Fourth Proportional to 28,018.34, 38,662.20 and 16,686.26

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Solution

The fourth proportional to 28,018.34, 38,662.20 and 16,686.26 is: 23,025.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,018.34 : 38,662.20 = 16,686.26 : x
  2. Step 2: Convert to fraction form
    28,018.34/38,662.20 = 16,686.26/x
  3. Step 3: Cross multiply
    28,018.34x = 38,662.20 × 16,686.26
  4. Step 4: Simplify right side
    28,018.34x = 645,127,328.06
  5. Step 5: Solve for x
    x = 645,127,328.06/28,018.34
  6. Step 6: Final answer
    x = 23,025.18

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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.