Home / 30,339.40-45,505.84-10,618.32

Finding the Fourth Proportional to 30,339.40, 45,505.84 and 10,618.32

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Solution

The fourth proportional to 30,339.40, 45,505.84 and 10,618.32 is: 15,926.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,339.40 : 45,505.84 = 10,618.32 : x
  2. Step 2: Convert to fraction form
    30,339.40/45,505.84 = 10,618.32/x
  3. Step 3: Cross multiply
    30,339.40x = 45,505.84 × 10,618.32
  4. Step 4: Simplify right side
    30,339.40x = 483,195,570.99
  5. Step 5: Solve for x
    x = 483,195,570.99/30,339.40
  6. Step 6: Final answer
    x = 15,926.34

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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.