Home / 28,775.10-39,729.21-18,024.42

Finding the Fourth Proportional to 28,775.10, 39,729.21 and 18,024.42

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Solution

The fourth proportional to 28,775.10, 39,729.21 and 18,024.42 is: 24,885.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,775.10 : 39,729.21 = 18,024.42 : x
  2. Step 2: Convert to fraction form
    28,775.10/39,729.21 = 18,024.42/x
  3. Step 3: Cross multiply
    28,775.10x = 39,729.21 × 18,024.42
  4. Step 4: Simplify right side
    28,775.10x = 716,095,768.66
  5. Step 5: Solve for x
    x = 716,095,768.66/28,775.10
  6. Step 6: Final answer
    x = 24,885.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.