Home / 21,365.42-32,053.70-12,488.32

Finding the Fourth Proportional to 21,365.42, 32,053.70 and 12,488.32

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Solution

The fourth proportional to 21,365.42, 32,053.70 and 12,488.32 is: 18,735.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,365.42 : 32,053.70 = 12,488.32 : x
  2. Step 2: Convert to fraction form
    21,365.42/32,053.70 = 12,488.32/x
  3. Step 3: Cross multiply
    21,365.42x = 32,053.70 × 12,488.32
  4. Step 4: Simplify right side
    21,365.42x = 400,296,891.34
  5. Step 5: Solve for x
    x = 400,296,891.34/21,365.42
  6. Step 6: Final answer
    x = 18,735.74

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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.