Home / 30,809.57-46,246.26-18,971.87

Finding the Fourth Proportional to 30,809.57, 46,246.26 and 18,971.87

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Solution

The fourth proportional to 30,809.57, 46,246.26 and 18,971.87 is: 28,477.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,809.57 : 46,246.26 = 18,971.87 : x
  2. Step 2: Convert to fraction form
    30,809.57/46,246.26 = 18,971.87/x
  3. Step 3: Cross multiply
    30,809.57x = 46,246.26 × 18,971.87
  4. Step 4: Simplify right side
    30,809.57x = 877,378,032.71
  5. Step 5: Solve for x
    x = 877,378,032.71/30,809.57
  6. Step 6: Final answer
    x = 28,477.45

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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.