Home / 21,071.69-31,607.52-6,280.23

Finding the Fourth Proportional to 21,071.69, 31,607.52 and 6,280.23

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Solution

The fourth proportional to 21,071.69, 31,607.52 and 6,280.23 is: 9,420.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,071.69 : 31,607.52 = 6,280.23 : x
  2. Step 2: Convert to fraction form
    21,071.69/31,607.52 = 6,280.23/x
  3. Step 3: Cross multiply
    21,071.69x = 31,607.52 × 6,280.23
  4. Step 4: Simplify right side
    21,071.69x = 198,502,495.33
  5. Step 5: Solve for x
    x = 198,502,495.33/21,071.69
  6. Step 6: Final answer
    x = 9,420.34

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Similar ratio
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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.