Home / 40,005.12-60,020.64-19,230.24

Finding the Fourth Proportional to 40,005.12, 60,020.64 and 19,230.24

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Solution

The fourth proportional to 40,005.12, 60,020.64 and 19,230.24 is: 28,851.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,005.12 : 60,020.64 = 19,230.24 : x
  2. Step 2: Convert to fraction form
    40,005.12/60,020.64 = 19,230.24/x
  3. Step 3: Cross multiply
    40,005.12x = 60,020.64 × 19,230.24
  4. Step 4: Simplify right side
    40,005.12x = 1,154,211,312.15
  5. Step 5: Solve for x
    x = 1,154,211,312.15/40,005.12
  6. Step 6: Final answer
    x = 28,851.59

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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.