Home / 25,985.60-38,982.47-8,451.32

Finding the Fourth Proportional to 25,985.60, 38,982.47 and 8,451.32

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Solution

The fourth proportional to 25,985.60, 38,982.47 and 8,451.32 is: 12,678.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,985.60 : 38,982.47 = 8,451.32 : x
  2. Step 2: Convert to fraction form
    25,985.60/38,982.47 = 8,451.32/x
  3. Step 3: Cross multiply
    25,985.60x = 38,982.47 × 8,451.32
  4. Step 4: Simplify right side
    25,985.60x = 329,453,328.36
  5. Step 5: Solve for x
    x = 329,453,328.36/25,985.60
  6. Step 6: Final answer
    x = 12,678.30

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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.