Home / 27,907.10-38,512.06-15,331.84

Finding the Fourth Proportional to 27,907.10, 38,512.06 and 15,331.84

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Solution

The fourth proportional to 27,907.10, 38,512.06 and 15,331.84 is: 21,158.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,907.10 : 38,512.06 = 15,331.84 : x
  2. Step 2: Convert to fraction form
    27,907.10/38,512.06 = 15,331.84/x
  3. Step 3: Cross multiply
    27,907.10x = 38,512.06 × 15,331.84
  4. Step 4: Simplify right side
    27,907.10x = 590,460,741.99
  5. Step 5: Solve for x
    x = 590,460,741.99/27,907.10
  6. Step 6: Final answer
    x = 21,158.08

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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.