Home / 39,421.94-59,142.33-13,126.91

Finding the Fourth Proportional to 39,421.94, 59,142.33 and 13,126.91

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Solution

The fourth proportional to 39,421.94, 59,142.33 and 13,126.91 is: 19,693.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,421.94 : 59,142.33 = 13,126.91 : x
  2. Step 2: Convert to fraction form
    39,421.94/59,142.33 = 13,126.91/x
  3. Step 3: Cross multiply
    39,421.94x = 59,142.33 × 13,126.91
  4. Step 4: Simplify right side
    39,421.94x = 776,356,043.14
  5. Step 5: Solve for x
    x = 776,356,043.14/39,421.94
  6. Step 6: Final answer
    x = 19,693.50

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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.