Home / 30,318.48-45,457.16-10,586.25

Finding the Fourth Proportional to 30,318.48, 45,457.16 and 10,586.25

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Solution

The fourth proportional to 30,318.48, 45,457.16 and 10,586.25 is: 15,872.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,318.48 : 45,457.16 = 10,586.25 : x
  2. Step 2: Convert to fraction form
    30,318.48/45,457.16 = 10,586.25/x
  3. Step 3: Cross multiply
    30,318.48x = 45,457.16 × 10,586.25
  4. Step 4: Simplify right side
    30,318.48x = 481,220,807.12
  5. Step 5: Solve for x
    x = 481,220,807.12/30,318.48
  6. Step 6: Final answer
    x = 15,872.19

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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.