Home / 30,133.41-45,189.64-12,359.03

Finding the Fourth Proportional to 30,133.41, 45,189.64 and 12,359.03

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Solution

The fourth proportional to 30,133.41, 45,189.64 and 12,359.03 is: 18,534.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,133.41 : 45,189.64 = 12,359.03 : x
  2. Step 2: Convert to fraction form
    30,133.41/45,189.64 = 12,359.03/x
  3. Step 3: Cross multiply
    30,133.41x = 45,189.64 × 12,359.03
  4. Step 4: Simplify right side
    30,133.41x = 558,499,828.71
  5. Step 5: Solve for x
    x = 558,499,828.71/30,133.41
  6. Step 6: Final answer
    x = 18,534.24

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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.