Home / 19,888.02-27,449.65-12,615.42

Finding the Fourth Proportional to 19,888.02, 27,449.65 and 12,615.42

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Solution

The fourth proportional to 19,888.02, 27,449.65 and 12,615.42 is: 17,411.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,888.02 : 27,449.65 = 12,615.42 : x
  2. Step 2: Convert to fraction form
    19,888.02/27,449.65 = 12,615.42/x
  3. Step 3: Cross multiply
    19,888.02x = 27,449.65 × 12,615.42
  4. Step 4: Simplify right side
    19,888.02x = 346,288,863.60
  5. Step 5: Solve for x
    x = 346,288,863.60/19,888.02
  6. Step 6: Final answer
    x = 17,411.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.