Home / 30,328.29-45,499.36-9,271.33

Finding the Fourth Proportional to 30,328.29, 45,499.36 and 9,271.33

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Solution

The fourth proportional to 30,328.29, 45,499.36 and 9,271.33 is: 13,909.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,328.29 : 45,499.36 = 9,271.33 : x
  2. Step 2: Convert to fraction form
    30,328.29/45,499.36 = 9,271.33/x
  3. Step 3: Cross multiply
    30,328.29x = 45,499.36 × 9,271.33
  4. Step 4: Simplify right side
    30,328.29x = 421,839,581.35
  5. Step 5: Solve for x
    x = 421,839,581.35/30,328.29
  6. Step 6: Final answer
    x = 13,909.11

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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.