Home / 19,428.69-26,813.15-10,930.31

Finding the Fourth Proportional to 19,428.69, 26,813.15 and 10,930.31

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Solution

The fourth proportional to 19,428.69, 26,813.15 and 10,930.31 is: 15,084.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,428.69 : 26,813.15 = 10,930.31 : x
  2. Step 2: Convert to fraction form
    19,428.69/26,813.15 = 10,930.31/x
  3. Step 3: Cross multiply
    19,428.69x = 26,813.15 × 10,930.31
  4. Step 4: Simplify right side
    19,428.69x = 293,076,041.58
  5. Step 5: Solve for x
    x = 293,076,041.58/19,428.69
  6. Step 6: Final answer
    x = 15,084.70

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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.