Home / 28,328.02-42,492-13,491.94

Finding the Fourth Proportional to 28,328.02, 42,492 and 13,491.94

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Solution

The fourth proportional to 28,328.02, 42,492 and 13,491.94 is: 20,237.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,328.02 : 42,492 = 13,491.94 : x
  2. Step 2: Convert to fraction form
    28,328.02/42,492 = 13,491.94/x
  3. Step 3: Cross multiply
    28,328.02x = 42,492 × 13,491.94
  4. Step 4: Simplify right side
    28,328.02x = 573,299,514.48
  5. Step 5: Solve for x
    x = 573,299,514.48/28,328.02
  6. Step 6: Final answer
    x = 20,237.90

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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.