Home / 20,696.65-28,561.99-14,657.70

Finding the Fourth Proportional to 20,696.65, 28,561.99 and 14,657.70

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Solution

The fourth proportional to 20,696.65, 28,561.99 and 14,657.70 is: 20,228.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,696.65 : 28,561.99 = 14,657.70 : x
  2. Step 2: Convert to fraction form
    20,696.65/28,561.99 = 14,657.70/x
  3. Step 3: Cross multiply
    20,696.65x = 28,561.99 × 14,657.70
  4. Step 4: Simplify right side
    20,696.65x = 418,652,937.78
  5. Step 5: Solve for x
    x = 418,652,937.78/20,696.65
  6. Step 6: Final answer
    x = 20,228.05

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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.