Home / 28,240.28-42,369.86-10,715.16

Finding the Fourth Proportional to 28,240.28, 42,369.86 and 10,715.16

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Solution

The fourth proportional to 28,240.28, 42,369.86 and 10,715.16 is: 16,076.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,240.28 : 42,369.86 = 10,715.16 : x
  2. Step 2: Convert to fraction form
    28,240.28/42,369.86 = 10,715.16/x
  3. Step 3: Cross multiply
    28,240.28x = 42,369.86 × 10,715.16
  4. Step 4: Simplify right side
    28,240.28x = 453,999,829.08
  5. Step 5: Solve for x
    x = 453,999,829.08/28,240.28
  6. Step 6: Final answer
    x = 16,076.32

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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.