Home / 19,399.90-29,114.34-13,145.08

Finding the Fourth Proportional to 19,399.90, 29,114.34 and 13,145.08

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Solution

The fourth proportional to 19,399.90, 29,114.34 and 13,145.08 is: 19,727.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,399.90 : 29,114.34 = 13,145.08 : x
  2. Step 2: Convert to fraction form
    19,399.90/29,114.34 = 13,145.08/x
  3. Step 3: Cross multiply
    19,399.90x = 29,114.34 × 13,145.08
  4. Step 4: Simplify right side
    19,399.90x = 382,710,328.45
  5. Step 5: Solve for x
    x = 382,710,328.45/19,399.90
  6. Step 6: Final answer
    x = 19,727.44

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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.