Home / 30,416.33-45,624.45-9,638.21

Finding the Fourth Proportional to 30,416.33, 45,624.45 and 9,638.21

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Solution

The fourth proportional to 30,416.33, 45,624.45 and 9,638.21 is: 14,457.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,416.33 : 45,624.45 = 9,638.21 : x
  2. Step 2: Convert to fraction form
    30,416.33/45,624.45 = 9,638.21/x
  3. Step 3: Cross multiply
    30,416.33x = 45,624.45 × 9,638.21
  4. Step 4: Simplify right side
    30,416.33x = 439,738,030.23
  5. Step 5: Solve for x
    x = 439,738,030.23/30,416.33
  6. Step 6: Final answer
    x = 14,457.30

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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.