Home / 30,660.99-46,009.23-12,890.25

Finding the Fourth Proportional to 30,660.99, 46,009.23 and 12,890.25

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Solution

The fourth proportional to 30,660.99, 46,009.23 and 12,890.25 is: 19,342.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,660.99 : 46,009.23 = 12,890.25 : x
  2. Step 2: Convert to fraction form
    30,660.99/46,009.23 = 12,890.25/x
  3. Step 3: Cross multiply
    30,660.99x = 46,009.23 × 12,890.25
  4. Step 4: Simplify right side
    30,660.99x = 593,070,477.01
  5. Step 5: Solve for x
    x = 593,070,477.01/30,660.99
  6. Step 6: Final answer
    x = 19,342.84

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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.