Home / 21,594.08-29,799.90-12,521.21

Finding the Fourth Proportional to 21,594.08, 29,799.90 and 12,521.21

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Solution

The fourth proportional to 21,594.08, 29,799.90 and 12,521.21 is: 17,279.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,594.08 : 29,799.90 = 12,521.21 : x
  2. Step 2: Convert to fraction form
    21,594.08/29,799.90 = 12,521.21/x
  3. Step 3: Cross multiply
    21,594.08x = 29,799.90 × 12,521.21
  4. Step 4: Simplify right side
    21,594.08x = 373,130,594.27
  5. Step 5: Solve for x
    x = 373,130,594.27/21,594.08
  6. Step 6: Final answer
    x = 17,279.30

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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.