Home / 18,313.40-27,316.15-16,631.64

Finding the Fourth Proportional to 18,313.40, 27,316.15 and 16,631.64

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Solution

The fourth proportional to 18,313.40, 27,316.15 and 16,631.64 is: 24,807.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,313.40 : 27,316.15 = 16,631.64 : x
  2. Step 2: Convert to fraction form
    18,313.40/27,316.15 = 16,631.64/x
  3. Step 3: Cross multiply
    18,313.40x = 27,316.15 × 16,631.64
  4. Step 4: Simplify right side
    18,313.40x = 454,312,153.25
  5. Step 5: Solve for x
    x = 454,312,153.25/18,313.40
  6. Step 6: Final answer
    x = 24,807.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.