Home / 21,615.19-32,426.80-7,574.92

Finding the Fourth Proportional to 21,615.19, 32,426.80 and 7,574.92

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Solution

The fourth proportional to 21,615.19, 32,426.80 and 7,574.92 is: 11,363.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,615.19 : 32,426.80 = 7,574.92 : x
  2. Step 2: Convert to fraction form
    21,615.19/32,426.80 = 7,574.92/x
  3. Step 3: Cross multiply
    21,615.19x = 32,426.80 × 7,574.92
  4. Step 4: Simplify right side
    21,615.19x = 245,630,315.85
  5. Step 5: Solve for x
    x = 245,630,315.85/21,615.19
  6. Step 6: Final answer
    x = 11,363.78

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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.