Home / 35,643.09-53,472.15-13,455.97

Finding the Fourth Proportional to 35,643.09, 53,472.15 and 13,455.97

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Solution

The fourth proportional to 35,643.09, 53,472.15 and 13,455.97 is: 20,186.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,643.09 : 53,472.15 = 13,455.97 : x
  2. Step 2: Convert to fraction form
    35,643.09/53,472.15 = 13,455.97/x
  3. Step 3: Cross multiply
    35,643.09x = 53,472.15 × 13,455.97
  4. Step 4: Simplify right side
    35,643.09x = 719,519,813.34
  5. Step 5: Solve for x
    x = 719,519,813.34/35,643.09
  6. Step 6: Final answer
    x = 20,186.80

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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.