Home / 20,866.28-31,299.47-6,075.55

Finding the Fourth Proportional to 20,866.28, 31,299.47 and 6,075.55

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Solution

The fourth proportional to 20,866.28, 31,299.47 and 6,075.55 is: 9,113.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,866.28 : 31,299.47 = 6,075.55 : x
  2. Step 2: Convert to fraction form
    20,866.28/31,299.47 = 6,075.55/x
  3. Step 3: Cross multiply
    20,866.28x = 31,299.47 × 6,075.55
  4. Step 4: Simplify right side
    20,866.28x = 190,161,549.27
  5. Step 5: Solve for x
    x = 190,161,549.27/20,866.28
  6. Step 6: Final answer
    x = 9,113.34

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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.