Home / 20,717.17-31,075.76-7,389.63

Finding the Fourth Proportional to 20,717.17, 31,075.76 and 7,389.63

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Solution

The fourth proportional to 20,717.17, 31,075.76 and 7,389.63 is: 11,084.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,717.17 : 31,075.76 = 7,389.63 : x
  2. Step 2: Convert to fraction form
    20,717.17/31,075.76 = 7,389.63/x
  3. Step 3: Cross multiply
    20,717.17x = 31,075.76 × 7,389.63
  4. Step 4: Simplify right side
    20,717.17x = 229,638,290.68
  5. Step 5: Solve for x
    x = 229,638,290.68/20,717.17
  6. Step 6: Final answer
    x = 11,084.44

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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.