Home / 28,307.28-39,053.16-18,234.94

Finding the Fourth Proportional to 28,307.28, 39,053.16 and 18,234.94

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Solution

The fourth proportional to 28,307.28, 39,053.16 and 18,234.94 is: 25,157.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,307.28 : 39,053.16 = 18,234.94 : x
  2. Step 2: Convert to fraction form
    28,307.28/39,053.16 = 18,234.94/x
  3. Step 3: Cross multiply
    28,307.28x = 39,053.16 × 18,234.94
  4. Step 4: Simplify right side
    28,307.28x = 712,132,029.41
  5. Step 5: Solve for x
    x = 712,132,029.41/28,307.28
  6. Step 6: Final answer
    x = 25,157.20

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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.