Home / 30,427.12-45,545.08-19,346.32

Finding the Fourth Proportional to 30,427.12, 45,545.08 and 19,346.32

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Solution

The fourth proportional to 30,427.12, 45,545.08 and 19,346.32 is: 28,958.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,427.12 : 45,545.08 = 19,346.32 : x
  2. Step 2: Convert to fraction form
    30,427.12/45,545.08 = 19,346.32/x
  3. Step 3: Cross multiply
    30,427.12x = 45,545.08 × 19,346.32
  4. Step 4: Simplify right side
    30,427.12x = 881,129,692.11
  5. Step 5: Solve for x
    x = 881,129,692.11/30,427.12
  6. Step 6: Final answer
    x = 28,958.70

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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.