Home / 21,253.69-29,329.70-14,539.09

Finding the Fourth Proportional to 21,253.69, 29,329.70 and 14,539.09

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Solution

The fourth proportional to 21,253.69, 29,329.70 and 14,539.09 is: 20,063.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,253.69 : 29,329.70 = 14,539.09 : x
  2. Step 2: Convert to fraction form
    21,253.69/29,329.70 = 14,539.09/x
  3. Step 3: Cross multiply
    21,253.69x = 29,329.70 × 14,539.09
  4. Step 4: Simplify right side
    21,253.69x = 426,427,075.28
  5. Step 5: Solve for x
    x = 426,427,075.28/21,253.69
  6. Step 6: Final answer
    x = 20,063.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.