Home / 30,987.90-46,462.14-14,325.66

Finding the Fourth Proportional to 30,987.90, 46,462.14 and 14,325.66

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Solution

The fourth proportional to 30,987.90, 46,462.14 and 14,325.66 is: 21,479.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,987.90 : 46,462.14 = 14,325.66 : x
  2. Step 2: Convert to fraction form
    30,987.90/46,462.14 = 14,325.66/x
  3. Step 3: Cross multiply
    30,987.90x = 46,462.14 × 14,325.66
  4. Step 4: Simplify right side
    30,987.90x = 665,600,820.51
  5. Step 5: Solve for x
    x = 665,600,820.51/30,987.90
  6. Step 6: Final answer
    x = 21,479.38

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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.