Home / 25,321.77-38,005.65-13,485.45

Finding the Fourth Proportional to 25,321.77, 38,005.65 and 13,485.45

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Solution

The fourth proportional to 25,321.77, 38,005.65 and 13,485.45 is: 20,240.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,321.77 : 38,005.65 = 13,485.45 : x
  2. Step 2: Convert to fraction form
    25,321.77/38,005.65 = 13,485.45/x
  3. Step 3: Cross multiply
    25,321.77x = 38,005.65 × 13,485.45
  4. Step 4: Simplify right side
    25,321.77x = 512,523,292.79
  5. Step 5: Solve for x
    x = 512,523,292.79/25,321.77
  6. Step 6: Final answer
    x = 20,240.42

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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.