Home / 39,264.57-58,904.15-12,987.77

Finding the Fourth Proportional to 39,264.57, 58,904.15 and 12,987.77

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Solution

The fourth proportional to 39,264.57, 58,904.15 and 12,987.77 is: 19,484.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,264.57 : 58,904.15 = 12,987.77 : x
  2. Step 2: Convert to fraction form
    39,264.57/58,904.15 = 12,987.77/x
  3. Step 3: Cross multiply
    39,264.57x = 58,904.15 × 12,987.77
  4. Step 4: Simplify right side
    39,264.57x = 765,033,192.79
  5. Step 5: Solve for x
    x = 765,033,192.79/39,264.57
  6. Step 6: Final answer
    x = 19,484.06

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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.