Home / 30,986.34-46,364.64-18,513.18

Finding the Fourth Proportional to 30,986.34, 46,364.64 and 18,513.18

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Solution

The fourth proportional to 30,986.34, 46,364.64 and 18,513.18 is: 27,701.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,986.34 : 46,364.64 = 18,513.18 : x
  2. Step 2: Convert to fraction form
    30,986.34/46,364.64 = 18,513.18/x
  3. Step 3: Cross multiply
    30,986.34x = 46,364.64 × 18,513.18
  4. Step 4: Simplify right side
    30,986.34x = 858,356,925.96
  5. Step 5: Solve for x
    x = 858,356,925.96/30,986.34
  6. Step 6: Final answer
    x = 27,701.14

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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.