Home / 39,816.60-59,732.10-20,045.40

Finding the Fourth Proportional to 39,816.60, 59,732.10 and 20,045.40

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Solution

The fourth proportional to 39,816.60, 59,732.10 and 20,045.40 is: 30,071.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,816.60 : 59,732.10 = 20,045.40 : x
  2. Step 2: Convert to fraction form
    39,816.60/59,732.10 = 20,045.40/x
  3. Step 3: Cross multiply
    39,816.60x = 59,732.10 × 20,045.40
  4. Step 4: Simplify right side
    39,816.60x = 1,197,353,837.34
  5. Step 5: Solve for x
    x = 1,197,353,837.34/39,816.60
  6. Step 6: Final answer
    x = 30,071.72

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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.