Home / 21,521.08-32,271.09-12,753.64

Finding the Fourth Proportional to 21,521.08, 32,271.09 and 12,753.64

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Solution

The fourth proportional to 21,521.08, 32,271.09 and 12,753.64 is: 19,124.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,521.08 : 32,271.09 = 12,753.64 : x
  2. Step 2: Convert to fraction form
    21,521.08/32,271.09 = 12,753.64/x
  3. Step 3: Cross multiply
    21,521.08x = 32,271.09 × 12,753.64
  4. Step 4: Simplify right side
    21,521.08x = 411,573,864.27
  5. Step 5: Solve for x
    x = 411,573,864.27/21,521.08
  6. Step 6: Final answer
    x = 19,124.22

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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.