Home / 20,576.16-30,875.16-8,888.40

Finding the Fourth Proportional to 20,576.16, 30,875.16 and 8,888.40

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Solution

The fourth proportional to 20,576.16, 30,875.16 and 8,888.40 is: 13,337.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,576.16 : 30,875.16 = 8,888.40 : x
  2. Step 2: Convert to fraction form
    20,576.16/30,875.16 = 8,888.40/x
  3. Step 3: Cross multiply
    20,576.16x = 30,875.16 × 8,888.40
  4. Step 4: Simplify right side
    20,576.16x = 274,430,772.14
  5. Step 5: Solve for x
    x = 274,430,772.14/20,576.16
  6. Step 6: Final answer
    x = 13,337.32

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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.