Home / 19,900.47-29,840.40-5,858.67

Finding the Fourth Proportional to 19,900.47, 29,840.40 and 5,858.67

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Solution

The fourth proportional to 19,900.47, 29,840.40 and 5,858.67 is: 8,784.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,900.47 : 29,840.40 = 5,858.67 : x
  2. Step 2: Convert to fraction form
    19,900.47/29,840.40 = 5,858.67/x
  3. Step 3: Cross multiply
    19,900.47x = 29,840.40 × 5,858.67
  4. Step 4: Simplify right side
    19,900.47x = 174,825,056.27
  5. Step 5: Solve for x
    x = 174,825,056.27/19,900.47
  6. Step 6: Final answer
    x = 8,784.97

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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.