Home / 21,140.30-29,107.22-17,946.98

Finding the Fourth Proportional to 21,140.30, 29,107.22 and 17,946.98

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Solution

The fourth proportional to 21,140.30, 29,107.22 and 17,946.98 is: 24,710.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,140.30 : 29,107.22 = 17,946.98 : x
  2. Step 2: Convert to fraction form
    21,140.30/29,107.22 = 17,946.98/x
  3. Step 3: Cross multiply
    21,140.30x = 29,107.22 × 17,946.98
  4. Step 4: Simplify right side
    21,140.30x = 522,386,695.20
  5. Step 5: Solve for x
    x = 522,386,695.20/21,140.30
  6. Step 6: Final answer
    x = 24,710.47

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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.