Home / 21,068.51-31,594.59-7,025.81

Finding the Fourth Proportional to 21,068.51, 31,594.59 and 7,025.81

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Solution

The fourth proportional to 21,068.51, 31,594.59 and 7,025.81 is: 10,535.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,068.51 : 31,594.59 = 7,025.81 : x
  2. Step 2: Convert to fraction form
    21,068.51/31,594.59 = 7,025.81/x
  3. Step 3: Cross multiply
    21,068.51x = 31,594.59 × 7,025.81
  4. Step 4: Simplify right side
    21,068.51x = 221,977,428.39
  5. Step 5: Solve for x
    x = 221,977,428.39/21,068.51
  6. Step 6: Final answer
    x = 10,535.98

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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.