Home / 39,688.77-54,771.54-22,695.78

Finding the Fourth Proportional to 39,688.77, 54,771.54 and 22,695.78

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Solution

The fourth proportional to 39,688.77, 54,771.54 and 22,695.78 is: 31,320.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,688.77 : 54,771.54 = 22,695.78 : x
  2. Step 2: Convert to fraction form
    39,688.77/54,771.54 = 22,695.78/x
  3. Step 3: Cross multiply
    39,688.77x = 54,771.54 × 22,695.78
  4. Step 4: Simplify right side
    39,688.77x = 1,243,082,822.10
  5. Step 5: Solve for x
    x = 1,243,082,822.10/39,688.77
  6. Step 6: Final answer
    x = 31,320.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.