Home / 27,643.84-38,148.96-15,069.12

Finding the Fourth Proportional to 27,643.84, 38,148.96 and 15,069.12

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Solution

The fourth proportional to 27,643.84, 38,148.96 and 15,069.12 is: 20,795.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,643.84 : 38,148.96 = 15,069.12 : x
  2. Step 2: Convert to fraction form
    27,643.84/38,148.96 = 15,069.12/x
  3. Step 3: Cross multiply
    27,643.84x = 38,148.96 × 15,069.12
  4. Step 4: Simplify right side
    27,643.84x = 574,871,256.12
  5. Step 5: Solve for x
    x = 574,871,256.12/27,643.84
  6. Step 6: Final answer
    x = 20,795.64

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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.