Home / 28,623.16-39,513.72-18,018.64

Finding the Fourth Proportional to 28,623.16, 39,513.72 and 18,018.64

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Solution

The fourth proportional to 28,623.16, 39,513.72 and 18,018.64 is: 24,874.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,623.16 : 39,513.72 = 18,018.64 : x
  2. Step 2: Convert to fraction form
    28,623.16/39,513.72 = 18,018.64/x
  3. Step 3: Cross multiply
    28,623.16x = 39,513.72 × 18,018.64
  4. Step 4: Simplify right side
    28,623.16x = 711,983,495.74
  5. Step 5: Solve for x
    x = 711,983,495.74/28,623.16
  6. Step 6: Final answer
    x = 24,874.38

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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.