Home / 30,198.48-45,312.75-13,570.38

Finding the Fourth Proportional to 30,198.48, 45,312.75 and 13,570.38

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Solution

The fourth proportional to 30,198.48, 45,312.75 and 13,570.38 is: 20,362.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,198.48 : 45,312.75 = 13,570.38 : x
  2. Step 2: Convert to fraction form
    30,198.48/45,312.75 = 13,570.38/x
  3. Step 3: Cross multiply
    30,198.48x = 45,312.75 × 13,570.38
  4. Step 4: Simplify right side
    30,198.48x = 614,911,236.35
  5. Step 5: Solve for x
    x = 614,911,236.35/30,198.48
  6. Step 6: Final answer
    x = 20,362.32

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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.