Home / 25,021.03-34,517.12-15,457.50

Finding the Fourth Proportional to 25,021.03, 34,517.12 and 15,457.50

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Solution

The fourth proportional to 25,021.03, 34,517.12 and 15,457.50 is: 21,323.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,021.03 : 34,517.12 = 15,457.50 : x
  2. Step 2: Convert to fraction form
    25,021.03/34,517.12 = 15,457.50/x
  3. Step 3: Cross multiply
    25,021.03x = 34,517.12 × 15,457.50
  4. Step 4: Simplify right side
    25,021.03x = 533,548,209.81
  5. Step 5: Solve for x
    x = 533,548,209.81/25,021.03
  6. Step 6: Final answer
    x = 21,323.99

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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.