Home / 25,339.60-38,009.40-12,193.30

Finding the Fourth Proportional to 25,339.60, 38,009.40 and 12,193.30

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Solution

The fourth proportional to 25,339.60, 38,009.40 and 12,193.30 is: 18,289.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,339.60 : 38,009.40 = 12,193.30 : x
  2. Step 2: Convert to fraction form
    25,339.60/38,009.40 = 12,193.30/x
  3. Step 3: Cross multiply
    25,339.60x = 38,009.40 × 12,193.30
  4. Step 4: Simplify right side
    25,339.60x = 463,460,017.02
  5. Step 5: Solve for x
    x = 463,460,017.02/25,339.60
  6. Step 6: Final answer
    x = 18,289.95

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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.