Home / 21,764.24-30,041.48-12,339.08

Finding the Fourth Proportional to 21,764.24, 30,041.48 and 12,339.08

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Solution

The fourth proportional to 21,764.24, 30,041.48 and 12,339.08 is: 17,031.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,764.24 : 30,041.48 = 12,339.08 : x
  2. Step 2: Convert to fraction form
    21,764.24/30,041.48 = 12,339.08/x
  3. Step 3: Cross multiply
    21,764.24x = 30,041.48 × 12,339.08
  4. Step 4: Simplify right side
    21,764.24x = 370,684,225.04
  5. Step 5: Solve for x
    x = 370,684,225.04/21,764.24
  6. Step 6: Final answer
    x = 17,031.80

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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.