Home / 27,650.57-38,157.69-15,075.32

Finding the Fourth Proportional to 27,650.57, 38,157.69 and 15,075.32

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Solution

The fourth proportional to 27,650.57, 38,157.69 and 15,075.32 is: 20,803.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,650.57 : 38,157.69 = 15,075.32 : x
  2. Step 2: Convert to fraction form
    27,650.57/38,157.69 = 15,075.32/x
  3. Step 3: Cross multiply
    27,650.57x = 38,157.69 × 15,075.32
  4. Step 4: Simplify right side
    27,650.57x = 575,239,387.21
  5. Step 5: Solve for x
    x = 575,239,387.21/27,650.57
  6. Step 6: Final answer
    x = 20,803.89

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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.