Home / 19,615.02-29,422.86-8,521.71

Finding the Fourth Proportional to 19,615.02, 29,422.86 and 8,521.71

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Solution

The fourth proportional to 19,615.02, 29,422.86 and 8,521.71 is: 12,782.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,615.02 : 29,422.86 = 8,521.71 : x
  2. Step 2: Convert to fraction form
    19,615.02/29,422.86 = 8,521.71/x
  3. Step 3: Cross multiply
    19,615.02x = 29,422.86 × 8,521.71
  4. Step 4: Simplify right side
    19,615.02x = 250,733,048.00
  5. Step 5: Solve for x
    x = 250,733,048.00/19,615.02
  6. Step 6: Final answer
    x = 12,782.71

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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.