Home / 28,291.66-42,372.90-13,510.99

Finding the Fourth Proportional to 28,291.66, 42,372.90 and 13,510.99

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Solution

The fourth proportional to 28,291.66, 42,372.90 and 13,510.99 is: 20,235.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,291.66 : 42,372.90 = 13,510.99 : x
  2. Step 2: Convert to fraction form
    28,291.66/42,372.90 = 13,510.99/x
  3. Step 3: Cross multiply
    28,291.66x = 42,372.90 × 13,510.99
  4. Step 4: Simplify right side
    28,291.66x = 572,499,828.17
  5. Step 5: Solve for x
    x = 572,499,828.17/28,291.66
  6. Step 6: Final answer
    x = 20,235.64

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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.