Home / 21,485.08-29,661.75-14,313.07

Finding the Fourth Proportional to 21,485.08, 29,661.75 and 14,313.07

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Solution

The fourth proportional to 21,485.08, 29,661.75 and 14,313.07 is: 19,760.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,485.08 : 29,661.75 = 14,313.07 : x
  2. Step 2: Convert to fraction form
    21,485.08/29,661.75 = 14,313.07/x
  3. Step 3: Cross multiply
    21,485.08x = 29,661.75 × 14,313.07
  4. Step 4: Simplify right side
    21,485.08x = 424,550,704.07
  5. Step 5: Solve for x
    x = 424,550,704.07/21,485.08
  6. Step 6: Final answer
    x = 19,760.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.