Home / 21,430.84-32,146.28-5,848.60

Finding the Fourth Proportional to 21,430.84, 32,146.28 and 5,848.60

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Solution

The fourth proportional to 21,430.84, 32,146.28 and 5,848.60 is: 8,772.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,430.84 : 32,146.28 = 5,848.60 : x
  2. Step 2: Convert to fraction form
    21,430.84/32,146.28 = 5,848.60/x
  3. Step 3: Cross multiply
    21,430.84x = 32,146.28 × 5,848.60
  4. Step 4: Simplify right side
    21,430.84x = 188,010,733.21
  5. Step 5: Solve for x
    x = 188,010,733.21/21,430.84
  6. Step 6: Final answer
    x = 8,772.91

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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.