Home / 43,127.36-64,686.78-13,544.40

Finding the Fourth Proportional to 43,127.36, 64,686.78 and 13,544.40

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Solution

The fourth proportional to 43,127.36, 64,686.78 and 13,544.40 is: 20,315.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,127.36 : 64,686.78 = 13,544.40 : x
  2. Step 2: Convert to fraction form
    43,127.36/64,686.78 = 13,544.40/x
  3. Step 3: Cross multiply
    43,127.36x = 64,686.78 × 13,544.40
  4. Step 4: Simplify right side
    43,127.36x = 876,143,623.03
  5. Step 5: Solve for x
    x = 876,143,623.03/43,127.36
  6. Step 6: Final answer
    x = 20,315.26

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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.