Home / 39,706.20-59,462.10-18,905.40

Finding the Fourth Proportional to 39,706.20, 59,462.10 and 18,905.40

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Solution

The fourth proportional to 39,706.20, 59,462.10 and 18,905.40 is: 28,311.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,706.20 : 59,462.10 = 18,905.40 : x
  2. Step 2: Convert to fraction form
    39,706.20/59,462.10 = 18,905.40/x
  3. Step 3: Cross multiply
    39,706.20x = 59,462.10 × 18,905.40
  4. Step 4: Simplify right side
    39,706.20x = 1,124,154,785.34
  5. Step 5: Solve for x
    x = 1,124,154,785.34/39,706.20
  6. Step 6: Final answer
    x = 28,311.82

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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.