Home / 28,555.68-42,839.28-10,100.64

Finding the Fourth Proportional to 28,555.68, 42,839.28 and 10,100.64

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Solution

The fourth proportional to 28,555.68, 42,839.28 and 10,100.64 is: 15,153.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,555.68 : 42,839.28 = 10,100.64 : x
  2. Step 2: Convert to fraction form
    28,555.68/42,839.28 = 10,100.64/x
  3. Step 3: Cross multiply
    28,555.68x = 42,839.28 × 10,100.64
  4. Step 4: Simplify right side
    28,555.68x = 432,704,145.14
  5. Step 5: Solve for x
    x = 432,704,145.14/28,555.68
  6. Step 6: Final answer
    x = 15,153.00

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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.