Home / 39,957.86-59,944.06-19,977.78

Finding the Fourth Proportional to 39,957.86, 59,944.06 and 19,977.78

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Solution

The fourth proportional to 39,957.86, 59,944.06 and 19,977.78 is: 29,970.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,957.86 : 59,944.06 = 19,977.78 : x
  2. Step 2: Convert to fraction form
    39,957.86/59,944.06 = 19,977.78/x
  3. Step 3: Cross multiply
    39,957.86x = 59,944.06 × 19,977.78
  4. Step 4: Simplify right side
    39,957.86x = 1,197,549,242.99
  5. Step 5: Solve for x
    x = 1,197,549,242.99/39,957.86
  6. Step 6: Final answer
    x = 29,970.30

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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.