Home / 28,405.42-42,614.28-10,875.25

Finding the Fourth Proportional to 28,405.42, 42,614.28 and 10,875.25

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Solution

The fourth proportional to 28,405.42, 42,614.28 and 10,875.25 is: 16,315.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,405.42 : 42,614.28 = 10,875.25 : x
  2. Step 2: Convert to fraction form
    28,405.42/42,614.28 = 10,875.25/x
  3. Step 3: Cross multiply
    28,405.42x = 42,614.28 × 10,875.25
  4. Step 4: Simplify right side
    28,405.42x = 463,440,948.57
  5. Step 5: Solve for x
    x = 463,440,948.57/28,405.42
  6. Step 6: Final answer
    x = 16,315.23

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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.