Home / 25,653.40-38,480.12-20,492.08

Finding the Fourth Proportional to 25,653.40, 38,480.12 and 20,492.08

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Solution

The fourth proportional to 25,653.40, 38,480.12 and 20,492.08 is: 30,738.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,653.40 : 38,480.12 = 20,492.08 : x
  2. Step 2: Convert to fraction form
    25,653.40/38,480.12 = 20,492.08/x
  3. Step 3: Cross multiply
    25,653.40x = 38,480.12 × 20,492.08
  4. Step 4: Simplify right side
    25,653.40x = 788,537,697.45
  5. Step 5: Solve for x
    x = 788,537,697.45/25,653.40
  6. Step 6: Final answer
    x = 30,738.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.