Home / 28,389.12-42,591.36-10,859.52

Finding the Fourth Proportional to 28,389.12, 42,591.36 and 10,859.52

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Solution

The fourth proportional to 28,389.12, 42,591.36 and 10,859.52 is: 16,292.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,389.12 : 42,591.36 = 10,859.52 : x
  2. Step 2: Convert to fraction form
    28,389.12/42,591.36 = 10,859.52/x
  3. Step 3: Cross multiply
    28,389.12x = 42,591.36 × 10,859.52
  4. Step 4: Simplify right side
    28,389.12x = 462,521,725.75
  5. Step 5: Solve for x
    x = 462,521,725.75/28,389.12
  6. Step 6: Final answer
    x = 16,292.22

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1.5x scale

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.