Home / 30,365.70-45,549.27-11,655.06

Finding the Fourth Proportional to 30,365.70, 45,549.27 and 11,655.06

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Solution

The fourth proportional to 30,365.70, 45,549.27 and 11,655.06 is: 17,482.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,365.70 : 45,549.27 = 11,655.06 : x
  2. Step 2: Convert to fraction form
    30,365.70/45,549.27 = 11,655.06/x
  3. Step 3: Cross multiply
    30,365.70x = 45,549.27 × 11,655.06
  4. Step 4: Simplify right side
    30,365.70x = 530,879,474.81
  5. Step 5: Solve for x
    x = 530,879,474.81/30,365.70
  6. Step 6: Final answer
    x = 17,482.87

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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.