Home / 21,386.34-32,055.60-8,897.85

Finding the Fourth Proportional to 21,386.34, 32,055.60 and 8,897.85

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Solution

The fourth proportional to 21,386.34, 32,055.60 and 8,897.85 is: 13,336.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,386.34 : 32,055.60 = 8,897.85 : x
  2. Step 2: Convert to fraction form
    21,386.34/32,055.60 = 8,897.85/x
  3. Step 3: Cross multiply
    21,386.34x = 32,055.60 × 8,897.85
  4. Step 4: Simplify right side
    21,386.34x = 285,225,920.46
  5. Step 5: Solve for x
    x = 285,225,920.46/21,386.34
  6. Step 6: Final answer
    x = 13,336.83

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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.