Home / 43,275.08-64,918.98-13,686.20

Finding the Fourth Proportional to 43,275.08, 64,918.98 and 13,686.20

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Solution

The fourth proportional to 43,275.08, 64,918.98 and 13,686.20 is: 20,531.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,275.08 : 64,918.98 = 13,686.20 : x
  2. Step 2: Convert to fraction form
    43,275.08/64,918.98 = 13,686.20/x
  3. Step 3: Cross multiply
    43,275.08x = 64,918.98 × 13,686.20
  4. Step 4: Simplify right side
    43,275.08x = 888,494,144.08
  5. Step 5: Solve for x
    x = 888,494,144.08/43,275.08
  6. Step 6: Final answer
    x = 20,531.31

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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.