Home / 30,157.68-45,236.52-9,381.18

Finding the Fourth Proportional to 30,157.68, 45,236.52 and 9,381.18

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Solution

The fourth proportional to 30,157.68, 45,236.52 and 9,381.18 is: 14,071.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,157.68 : 45,236.52 = 9,381.18 : x
  2. Step 2: Convert to fraction form
    30,157.68/45,236.52 = 9,381.18/x
  3. Step 3: Cross multiply
    30,157.68x = 45,236.52 × 9,381.18
  4. Step 4: Simplify right side
    30,157.68x = 424,371,936.69
  5. Step 5: Solve for x
    x = 424,371,936.69/30,157.68
  6. Step 6: Final answer
    x = 14,071.77

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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.