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Finding the Fourth Proportional to 39,948, 59,921.76 and 10,365.76

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Solution

The fourth proportional to 39,948, 59,921.76 and 10,365.76 is: 15,548.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,948 : 59,921.76 = 10,365.76 : x
  2. Step 2: Convert to fraction form
    39,948/59,921.76 = 10,365.76/x
  3. Step 3: Cross multiply
    39,948x = 59,921.76 × 10,365.76
  4. Step 4: Simplify right side
    39,948x = 621,134,582.94
  5. Step 5: Solve for x
    x = 621,134,582.94/39,948
  6. Step 6: Final answer
    x = 15,548.58

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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.