Home / 31,107.71-46,678.01-18,652.75

Finding the Fourth Proportional to 31,107.71, 46,678.01 and 18,652.75

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Solution

The fourth proportional to 31,107.71, 46,678.01 and 18,652.75 is: 27,988.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,107.71 : 46,678.01 = 18,652.75 : x
  2. Step 2: Convert to fraction form
    31,107.71/46,678.01 = 18,652.75/x
  3. Step 3: Cross multiply
    31,107.71x = 46,678.01 × 18,652.75
  4. Step 4: Simplify right side
    31,107.71x = 870,673,041.07
  5. Step 5: Solve for x
    x = 870,673,041.07/31,107.71
  6. Step 6: Final answer
    x = 27,988.98

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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.