Home / 30,233.70-45,332.55-18,555.30

Finding the Fourth Proportional to 30,233.70, 45,332.55 and 18,555.30

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Solution

The fourth proportional to 30,233.70, 45,332.55 and 18,555.30 is: 27,821.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,233.70 : 45,332.55 = 18,555.30 : x
  2. Step 2: Convert to fraction form
    30,233.70/45,332.55 = 18,555.30/x
  3. Step 3: Cross multiply
    30,233.70x = 45,332.55 × 18,555.30
  4. Step 4: Simplify right side
    30,233.70x = 841,159,065.02
  5. Step 5: Solve for x
    x = 841,159,065.02/30,233.70
  6. Step 6: Final answer
    x = 27,821.90

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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.