Home / 39,423.84-59,142.24-13,123.68

Finding the Fourth Proportional to 39,423.84, 59,142.24 and 13,123.68

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Solution

The fourth proportional to 39,423.84, 59,142.24 and 13,123.68 is: 19,687.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,423.84 : 59,142.24 = 13,123.68 : x
  2. Step 2: Convert to fraction form
    39,423.84/59,142.24 = 13,123.68/x
  3. Step 3: Cross multiply
    39,423.84x = 59,142.24 × 13,123.68
  4. Step 4: Simplify right side
    39,423.84x = 776,163,832.24
  5. Step 5: Solve for x
    x = 776,163,832.24/39,423.84
  6. Step 6: Final answer
    x = 19,687.68

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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.