Home / 20,688.65-31,033.16-5,897.55

Finding the Fourth Proportional to 20,688.65, 31,033.16 and 5,897.55

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Solution

The fourth proportional to 20,688.65, 31,033.16 and 5,897.55 is: 8,846.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,688.65 : 31,033.16 = 5,897.55 : x
  2. Step 2: Convert to fraction form
    20,688.65/31,033.16 = 5,897.55/x
  3. Step 3: Cross multiply
    20,688.65x = 31,033.16 × 5,897.55
  4. Step 4: Simplify right side
    20,688.65x = 183,019,583.27
  5. Step 5: Solve for x
    x = 183,019,583.27/20,688.65
  6. Step 6: Final answer
    x = 8,846.38

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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.