Home / 19,929.99-27,504.63-10,977.49

Finding the Fourth Proportional to 19,929.99, 27,504.63 and 10,977.49

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Solution

The fourth proportional to 19,929.99, 27,504.63 and 10,977.49 is: 15,149.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,929.99 : 27,504.63 = 10,977.49 : x
  2. Step 2: Convert to fraction form
    19,929.99/27,504.63 = 10,977.49/x
  3. Step 3: Cross multiply
    19,929.99x = 27,504.63 × 10,977.49
  4. Step 4: Simplify right side
    19,929.99x = 301,931,649.57
  5. Step 5: Solve for x
    x = 301,931,649.57/19,929.99
  6. Step 6: Final answer
    x = 15,149.62

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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.