Home / 30,439.60-45,645.93-13,798.96

Finding the Fourth Proportional to 30,439.60, 45,645.93 and 13,798.96

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Solution

The fourth proportional to 30,439.60, 45,645.93 and 13,798.96 is: 20,692.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,439.60 : 45,645.93 = 13,798.96 : x
  2. Step 2: Convert to fraction form
    30,439.60/45,645.93 = 13,798.96/x
  3. Step 3: Cross multiply
    30,439.60x = 45,645.93 × 13,798.96
  4. Step 4: Simplify right side
    30,439.60x = 629,866,248.12
  5. Step 5: Solve for x
    x = 629,866,248.12/30,439.60
  6. Step 6: Final answer
    x = 20,692.33

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1.5x scale

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.