Home / 28,680.84-39,580.02-16,105.32

Finding the Fourth Proportional to 28,680.84, 39,580.02 and 16,105.32

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Solution

The fourth proportional to 28,680.84, 39,580.02 and 16,105.32 is: 22,225.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,680.84 : 39,580.02 = 16,105.32 : x
  2. Step 2: Convert to fraction form
    28,680.84/39,580.02 = 16,105.32/x
  3. Step 3: Cross multiply
    28,680.84x = 39,580.02 × 16,105.32
  4. Step 4: Simplify right side
    28,680.84x = 637,448,887.71
  5. Step 5: Solve for x
    x = 637,448,887.71/28,680.84
  6. Step 6: Final answer
    x = 22,225.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.