Home / 20,583.46-28,405.14-11,152.02

Finding the Fourth Proportional to 20,583.46, 28,405.14 and 11,152.02

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Solution

The fourth proportional to 20,583.46, 28,405.14 and 11,152.02 is: 15,389.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,583.46 : 28,405.14 = 11,152.02 : x
  2. Step 2: Convert to fraction form
    20,583.46/28,405.14 = 11,152.02/x
  3. Step 3: Cross multiply
    20,583.46x = 28,405.14 × 11,152.02
  4. Step 4: Simplify right side
    20,583.46x = 316,774,689.38
  5. Step 5: Solve for x
    x = 316,774,689.38/20,583.46
  6. Step 6: Final answer
    x = 15,389.77

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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.