Home / 28,689.12-43,043.40-14,655.06

Finding the Fourth Proportional to 28,689.12, 43,043.40 and 14,655.06

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Solution

The fourth proportional to 28,689.12, 43,043.40 and 14,655.06 is: 21,987.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,689.12 : 43,043.40 = 14,655.06 : x
  2. Step 2: Convert to fraction form
    28,689.12/43,043.40 = 14,655.06/x
  3. Step 3: Cross multiply
    28,689.12x = 43,043.40 × 14,655.06
  4. Step 4: Simplify right side
    28,689.12x = 630,803,609.60
  5. Step 5: Solve for x
    x = 630,803,609.60/28,689.12
  6. Step 6: Final answer
    x = 21,987.56

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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.