Home / 39,531.36-59,288.49-12,515.82

Finding the Fourth Proportional to 39,531.36, 59,288.49 and 12,515.82

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Solution

The fourth proportional to 39,531.36, 59,288.49 and 12,515.82 is: 18,771.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,531.36 : 59,288.49 = 12,515.82 : x
  2. Step 2: Convert to fraction form
    39,531.36/59,288.49 = 12,515.82/x
  3. Step 3: Cross multiply
    39,531.36x = 59,288.49 × 12,515.82
  4. Step 4: Simplify right side
    39,531.36x = 742,044,068.91
  5. Step 5: Solve for x
    x = 742,044,068.91/39,531.36
  6. Step 6: Final answer
    x = 18,771.02

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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.