Home / 21,549.65-29,739.23-13,053.36

Finding the Fourth Proportional to 21,549.65, 29,739.23 and 13,053.36

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Solution

The fourth proportional to 21,549.65, 29,739.23 and 13,053.36 is: 18,014.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,549.65 : 29,739.23 = 13,053.36 : x
  2. Step 2: Convert to fraction form
    21,549.65/29,739.23 = 13,053.36/x
  3. Step 3: Cross multiply
    21,549.65x = 29,739.23 × 13,053.36
  4. Step 4: Simplify right side
    21,549.65x = 388,196,875.31
  5. Step 5: Solve for x
    x = 388,196,875.31/21,549.65
  6. Step 6: Final answer
    x = 18,014.07

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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.