Home / 18,075.65-27,009.86-13,777.59

Finding the Fourth Proportional to 18,075.65, 27,009.86 and 13,777.59

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Solution

The fourth proportional to 18,075.65, 27,009.86 and 13,777.59 is: 20,587.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,075.65 : 27,009.86 = 13,777.59 : x
  2. Step 2: Convert to fraction form
    18,075.65/27,009.86 = 13,777.59/x
  3. Step 3: Cross multiply
    18,075.65x = 27,009.86 × 13,777.59
  4. Step 4: Simplify right side
    18,075.65x = 372,130,777.04
  5. Step 5: Solve for x
    x = 372,130,777.04/18,075.65
  6. Step 6: Final answer
    x = 20,587.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.