Home / 28,570.71-42,841.63-16,728.05

Finding the Fourth Proportional to 28,570.71, 42,841.63 and 16,728.05

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Solution

The fourth proportional to 28,570.71, 42,841.63 and 16,728.05 is: 25,083.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,570.71 : 42,841.63 = 16,728.05 : x
  2. Step 2: Convert to fraction form
    28,570.71/42,841.63 = 16,728.05/x
  3. Step 3: Cross multiply
    28,570.71x = 42,841.63 × 16,728.05
  4. Step 4: Simplify right side
    28,570.71x = 716,656,962.64
  5. Step 5: Solve for x
    x = 716,656,962.64/28,570.71
  6. Step 6: Final answer
    x = 25,083.63

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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.