Home / 21,064.46-31,602.45-9,216.08

Finding the Fourth Proportional to 21,064.46, 31,602.45 and 9,216.08

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Solution

The fourth proportional to 21,064.46, 31,602.45 and 9,216.08 is: 13,826.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,064.46 : 31,602.45 = 9,216.08 : x
  2. Step 2: Convert to fraction form
    21,064.46/31,602.45 = 9,216.08/x
  3. Step 3: Cross multiply
    21,064.46x = 31,602.45 × 9,216.08
  4. Step 4: Simplify right side
    21,064.46x = 291,250,702.45
  5. Step 5: Solve for x
    x = 291,250,702.45/21,064.46
  6. Step 6: Final answer
    x = 13,826.64

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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.