Home / 30,313.53-45,476.60-12,783.51

Finding the Fourth Proportional to 30,313.53, 45,476.60 and 12,783.51

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Solution

The fourth proportional to 30,313.53, 45,476.60 and 12,783.51 is: 19,177.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,313.53 : 45,476.60 = 12,783.51 : x
  2. Step 2: Convert to fraction form
    30,313.53/45,476.60 = 12,783.51/x
  3. Step 3: Cross multiply
    30,313.53x = 45,476.60 × 12,783.51
  4. Step 4: Simplify right side
    30,313.53x = 581,350,506.95
  5. Step 5: Solve for x
    x = 581,350,506.95/30,313.53
  6. Step 6: Final answer
    x = 19,177.92

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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.