Home / 42,984.19-64,455.55-18,017.53

Finding the Fourth Proportional to 42,984.19, 64,455.55 and 18,017.53

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Solution

The fourth proportional to 42,984.19, 64,455.55 and 18,017.53 is: 27,017.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,984.19 : 64,455.55 = 18,017.53 : x
  2. Step 2: Convert to fraction form
    42,984.19/64,455.55 = 18,017.53/x
  3. Step 3: Cross multiply
    42,984.19x = 64,455.55 × 18,017.53
  4. Step 4: Simplify right side
    42,984.19x = 1,161,329,990.32
  5. Step 5: Solve for x
    x = 1,161,329,990.32/42,984.19
  6. Step 6: Final answer
    x = 27,017.61

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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.