Home / 42,993.12-64,466.64-19,624.80

Finding the Fourth Proportional to 42,993.12, 64,466.64 and 19,624.80

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Solution

The fourth proportional to 42,993.12, 64,466.64 and 19,624.80 is: 29,426.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,993.12 : 64,466.64 = 19,624.80 : x
  2. Step 2: Convert to fraction form
    42,993.12/64,466.64 = 19,624.80/x
  3. Step 3: Cross multiply
    42,993.12x = 64,466.64 × 19,624.80
  4. Step 4: Simplify right side
    42,993.12x = 1,265,144,916.67
  5. Step 5: Solve for x
    x = 1,265,144,916.67/42,993.12
  6. Step 6: Final answer
    x = 29,426.68

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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.