Home / 31,583.02-47,357.12-12,858.26

Finding the Fourth Proportional to 31,583.02, 47,357.12 and 12,858.26

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Solution

The fourth proportional to 31,583.02, 47,357.12 and 12,858.26 is: 19,280.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,583.02 : 47,357.12 = 12,858.26 : x
  2. Step 2: Convert to fraction form
    31,583.02/47,357.12 = 12,858.26/x
  3. Step 3: Cross multiply
    31,583.02x = 47,357.12 × 12,858.26
  4. Step 4: Simplify right side
    31,583.02x = 608,930,161.81
  5. Step 5: Solve for x
    x = 608,930,161.81/31,583.02
  6. Step 6: Final answer
    x = 19,280.30

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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.