Home / 19,929.81-27,503.33-10,977.59

Finding the Fourth Proportional to 19,929.81, 27,503.33 and 10,977.59

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Solution

The fourth proportional to 19,929.81, 27,503.33 and 10,977.59 is: 15,149.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,929.81 : 27,503.33 = 10,977.59 : x
  2. Step 2: Convert to fraction form
    19,929.81/27,503.33 = 10,977.59/x
  3. Step 3: Cross multiply
    19,929.81x = 27,503.33 × 10,977.59
  4. Step 4: Simplify right side
    19,929.81x = 301,920,280.37
  5. Step 5: Solve for x
    x = 301,920,280.37/19,929.81
  6. Step 6: Final answer
    x = 15,149.18

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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.