Home / 28,247.64-42,341.90-9,521.21

Finding the Fourth Proportional to 28,247.64, 42,341.90 and 9,521.21

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Solution

The fourth proportional to 28,247.64, 42,341.90 and 9,521.21 is: 14,271.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,247.64 : 42,341.90 = 9,521.21 : x
  2. Step 2: Convert to fraction form
    28,247.64/42,341.90 = 9,521.21/x
  3. Step 3: Cross multiply
    28,247.64x = 42,341.90 × 9,521.21
  4. Step 4: Simplify right side
    28,247.64x = 403,145,862.38
  5. Step 5: Solve for x
    x = 403,145,862.38/28,247.64
  6. Step 6: Final answer
    x = 14,271.84

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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.