Home / 39,124.50-58,686.75-11,422.50

Finding the Fourth Proportional to 39,124.50, 58,686.75 and 11,422.50

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Solution

The fourth proportional to 39,124.50, 58,686.75 and 11,422.50 is: 17,133.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,124.50 : 58,686.75 = 11,422.50 : x
  2. Step 2: Convert to fraction form
    39,124.50/58,686.75 = 11,422.50/x
  3. Step 3: Cross multiply
    39,124.50x = 58,686.75 × 11,422.50
  4. Step 4: Simplify right side
    39,124.50x = 670,349,401.88
  5. Step 5: Solve for x
    x = 670,349,401.88/39,124.50
  6. Step 6: Final answer
    x = 17,133.75

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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.