Home / 21,436.50-29,582.40-12,005.16

Finding the Fourth Proportional to 21,436.50, 29,582.40 and 12,005.16

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Solution

The fourth proportional to 21,436.50, 29,582.40 and 12,005.16 is: 16,567.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,436.50 : 29,582.40 = 12,005.16 : x
  2. Step 2: Convert to fraction form
    21,436.50/29,582.40 = 12,005.16/x
  3. Step 3: Cross multiply
    21,436.50x = 29,582.40 × 12,005.16
  4. Step 4: Simplify right side
    21,436.50x = 355,141,445.18
  5. Step 5: Solve for x
    x = 355,141,445.18/21,436.50
  6. Step 6: Final answer
    x = 16,567.14

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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.