Home / 21,153.76-31,706.88-10,051.36

Finding the Fourth Proportional to 21,153.76, 31,706.88 and 10,051.36

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Solution

The fourth proportional to 21,153.76, 31,706.88 and 10,051.36 is: 15,065.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,153.76 : 31,706.88 = 10,051.36 : x
  2. Step 2: Convert to fraction form
    21,153.76/31,706.88 = 10,051.36/x
  3. Step 3: Cross multiply
    21,153.76x = 31,706.88 × 10,051.36
  4. Step 4: Simplify right side
    21,153.76x = 318,697,265.36
  5. Step 5: Solve for x
    x = 318,697,265.36/21,153.76
  6. Step 6: Final answer
    x = 15,065.75

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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.