Home / 30,987.60-46,466.03-13,215.48

Finding the Fourth Proportional to 30,987.60, 46,466.03 and 13,215.48

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Solution

The fourth proportional to 30,987.60, 46,466.03 and 13,215.48 is: 19,816.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,987.60 : 46,466.03 = 13,215.48 : x
  2. Step 2: Convert to fraction form
    30,987.60/46,466.03 = 13,215.48/x
  3. Step 3: Cross multiply
    30,987.60x = 46,466.03 × 13,215.48
  4. Step 4: Simplify right side
    30,987.60x = 614,070,824.07
  5. Step 5: Solve for x
    x = 614,070,824.07/30,987.60
  6. Step 6: Final answer
    x = 19,816.66

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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.