Home / 28,105.71-42,184.08-14,969.13

Finding the Fourth Proportional to 28,105.71, 42,184.08 and 14,969.13

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Solution

The fourth proportional to 28,105.71, 42,184.08 and 14,969.13 is: 22,467.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,105.71 : 42,184.08 = 14,969.13 : x
  2. Step 2: Convert to fraction form
    28,105.71/42,184.08 = 14,969.13/x
  3. Step 3: Cross multiply
    28,105.71x = 42,184.08 × 14,969.13
  4. Step 4: Simplify right side
    28,105.71x = 631,458,977.45
  5. Step 5: Solve for x
    x = 631,458,977.45/28,105.71
  6. Step 6: Final answer
    x = 22,467.28

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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.