Home / 20,678.04-31,012.35-5,886.63

Finding the Fourth Proportional to 20,678.04, 31,012.35 and 5,886.63

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Solution

The fourth proportional to 20,678.04, 31,012.35 and 5,886.63 is: 8,828.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,678.04 : 31,012.35 = 5,886.63 : x
  2. Step 2: Convert to fraction form
    20,678.04/31,012.35 = 5,886.63/x
  3. Step 3: Cross multiply
    20,678.04x = 31,012.35 × 5,886.63
  4. Step 4: Simplify right side
    20,678.04x = 182,558,229.88
  5. Step 5: Solve for x
    x = 182,558,229.88/20,678.04
  6. Step 6: Final answer
    x = 8,828.60

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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.