Home / 30,510.12-45,779.08-18,054.54

Finding the Fourth Proportional to 30,510.12, 45,779.08 and 18,054.54

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Solution

The fourth proportional to 30,510.12, 45,779.08 and 18,054.54 is: 27,090.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,510.12 : 45,779.08 = 18,054.54 : x
  2. Step 2: Convert to fraction form
    30,510.12/45,779.08 = 18,054.54/x
  3. Step 3: Cross multiply
    30,510.12x = 45,779.08 × 18,054.54
  4. Step 4: Simplify right side
    30,510.12x = 826,520,231.02
  5. Step 5: Solve for x
    x = 826,520,231.02/30,510.12
  6. Step 6: Final answer
    x = 27,090.04

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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.