Home / 20,717.95-31,078.01-5,929.05

Finding the Fourth Proportional to 20,717.95, 31,078.01 and 5,929.05

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Solution

The fourth proportional to 20,717.95, 31,078.01 and 5,929.05 is: 8,893.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,717.95 : 31,078.01 = 5,929.05 : x
  2. Step 2: Convert to fraction form
    20,717.95/31,078.01 = 5,929.05/x
  3. Step 3: Cross multiply
    20,717.95x = 31,078.01 × 5,929.05
  4. Step 4: Simplify right side
    20,717.95x = 184,263,075.19
  5. Step 5: Solve for x
    x = 184,263,075.19/20,717.95
  6. Step 6: Final answer
    x = 8,893.89

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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.