Home / 42,692.85-64,037.93-19,319.31

Finding the Fourth Proportional to 42,692.85, 64,037.93 and 19,319.31

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Solution

The fourth proportional to 42,692.85, 64,037.93 and 19,319.31 is: 28,978.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,692.85 : 64,037.93 = 19,319.31 : x
  2. Step 2: Convert to fraction form
    42,692.85/64,037.93 = 19,319.31/x
  3. Step 3: Cross multiply
    42,692.85x = 64,037.93 × 19,319.31
  4. Step 4: Simplify right side
    42,692.85x = 1,237,168,524.83
  5. Step 5: Solve for x
    x = 1,237,168,524.83/42,692.85
  6. Step 6: Final answer
    x = 28,978.35

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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.