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Finding the Fourth Proportional to 39,101, 58,615.06 and 15,421.40

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Solution

The fourth proportional to 39,101, 58,615.06 and 15,421.40 is: 23,117.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,101 : 58,615.06 = 15,421.40 : x
  2. Step 2: Convert to fraction form
    39,101/58,615.06 = 15,421.40/x
  3. Step 3: Cross multiply
    39,101x = 58,615.06 × 15,421.40
  4. Step 4: Simplify right side
    39,101x = 903,926,286.28
  5. Step 5: Solve for x
    x = 903,926,286.28/39,101
  6. Step 6: Final answer
    x = 23,117.73

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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.