Home / 20,733.30-31,075.65-15,533.10

Finding the Fourth Proportional to 20,733.30, 31,075.65 and 15,533.10

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Solution

The fourth proportional to 20,733.30, 31,075.65 and 15,533.10 is: 23,281.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,733.30 : 31,075.65 = 15,533.10 : x
  2. Step 2: Convert to fraction form
    20,733.30/31,075.65 = 15,533.10/x
  3. Step 3: Cross multiply
    20,733.30x = 31,075.65 × 15,533.10
  4. Step 4: Simplify right side
    20,733.30x = 482,701,179.02
  5. Step 5: Solve for x
    x = 482,701,179.02/20,733.30
  6. Step 6: Final answer
    x = 23,281.44

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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.