Home / 25,678.02-35,437.32-15,063.78

Finding the Fourth Proportional to 25,678.02, 35,437.32 and 15,063.78

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Solution

The fourth proportional to 25,678.02, 35,437.32 and 15,063.78 is: 20,788.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,678.02 : 35,437.32 = 15,063.78 : x
  2. Step 2: Convert to fraction form
    25,678.02/35,437.32 = 15,063.78/x
  3. Step 3: Cross multiply
    25,678.02x = 35,437.32 × 15,063.78
  4. Step 4: Simplify right side
    25,678.02x = 533,819,992.27
  5. Step 5: Solve for x
    x = 533,819,992.27/25,678.02
  6. Step 6: Final answer
    x = 20,788.99

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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.