Home / 21,477.02-29,631.30-12,043.76

Finding the Fourth Proportional to 21,477.02, 29,631.30 and 12,043.76

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Solution

The fourth proportional to 21,477.02, 29,631.30 and 12,043.76 is: 16,616.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,477.02 : 29,631.30 = 12,043.76 : x
  2. Step 2: Convert to fraction form
    21,477.02/29,631.30 = 12,043.76/x
  3. Step 3: Cross multiply
    21,477.02x = 29,631.30 × 12,043.76
  4. Step 4: Simplify right side
    21,477.02x = 356,872,265.69
  5. Step 5: Solve for x
    x = 356,872,265.69/21,477.02
  6. Step 6: Final answer
    x = 16,616.47

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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.