Home / 20,717.06-31,075.56-5,134.68

Finding the Fourth Proportional to 20,717.06, 31,075.56 and 5,134.68

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Solution

The fourth proportional to 20,717.06, 31,075.56 and 5,134.68 is: 7,702.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,717.06 : 31,075.56 = 5,134.68 : x
  2. Step 2: Convert to fraction form
    20,717.06/31,075.56 = 5,134.68/x
  3. Step 3: Cross multiply
    20,717.06x = 31,075.56 × 5,134.68
  4. Step 4: Simplify right side
    20,717.06x = 159,563,056.42
  5. Step 5: Solve for x
    x = 159,563,056.42/20,717.06
  6. Step 6: Final answer
    x = 7,702.01

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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.