Home / 39,731.78-59,527.62-20,970.49

Finding the Fourth Proportional to 39,731.78, 59,527.62 and 20,970.49

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Solution

The fourth proportional to 39,731.78, 59,527.62 and 20,970.49 is: 31,418.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,731.78 : 59,527.62 = 20,970.49 : x
  2. Step 2: Convert to fraction form
    39,731.78/59,527.62 = 20,970.49/x
  3. Step 3: Cross multiply
    39,731.78x = 59,527.62 × 20,970.49
  4. Step 4: Simplify right side
    39,731.78x = 1,248,323,359.93
  5. Step 5: Solve for x
    x = 1,248,323,359.93/39,731.78
  6. Step 6: Final answer
    x = 31,418.76

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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.