Home / 25,804.20-38,657.70-13,281.60

Finding the Fourth Proportional to 25,804.20, 38,657.70 and 13,281.60

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Solution

The fourth proportional to 25,804.20, 38,657.70 and 13,281.60 is: 19,897.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,804.20 : 38,657.70 = 13,281.60 : x
  2. Step 2: Convert to fraction form
    25,804.20/38,657.70 = 13,281.60/x
  3. Step 3: Cross multiply
    25,804.20x = 38,657.70 × 13,281.60
  4. Step 4: Simplify right side
    25,804.20x = 513,436,108.32
  5. Step 5: Solve for x
    x = 513,436,108.32/25,804.20
  6. Step 6: Final answer
    x = 19,897.39

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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.