Home / 28,802.66-43,141.35-13,980.38

Finding the Fourth Proportional to 28,802.66, 43,141.35 and 13,980.38

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Solution

The fourth proportional to 28,802.66, 43,141.35 and 13,980.38 is: 20,940.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,802.66 : 43,141.35 = 13,980.38 : x
  2. Step 2: Convert to fraction form
    28,802.66/43,141.35 = 13,980.38/x
  3. Step 3: Cross multiply
    28,802.66x = 43,141.35 × 13,980.38
  4. Step 4: Simplify right side
    28,802.66x = 603,132,466.71
  5. Step 5: Solve for x
    x = 603,132,466.71/28,802.66
  6. Step 6: Final answer
    x = 20,940.17

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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.