Home / 42,859.29-64,283.81-11,271.81

Finding the Fourth Proportional to 42,859.29, 64,283.81 and 11,271.81

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Solution

The fourth proportional to 42,859.29, 64,283.81 and 11,271.81 is: 16,906.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,859.29 : 64,283.81 = 11,271.81 : x
  2. Step 2: Convert to fraction form
    42,859.29/64,283.81 = 11,271.81/x
  3. Step 3: Cross multiply
    42,859.29x = 64,283.81 × 11,271.81
  4. Step 4: Simplify right side
    42,859.29x = 724,594,892.40
  5. Step 5: Solve for x
    x = 724,594,892.40/42,859.29
  6. Step 6: Final answer
    x = 16,906.37

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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.