Home / 14,005.30-21,007.95-13,908.10

Finding the Fourth Proportional to 14,005.30, 21,007.95 and 13,908.10

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Solution

The fourth proportional to 14,005.30, 21,007.95 and 13,908.10 is: 20,862.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,005.30 : 21,007.95 = 13,908.10 : x
  2. Step 2: Convert to fraction form
    14,005.30/21,007.95 = 13,908.10/x
  3. Step 3: Cross multiply
    14,005.30x = 21,007.95 × 13,908.10
  4. Step 4: Simplify right side
    14,005.30x = 292,180,669.40
  5. Step 5: Solve for x
    x = 292,180,669.40/14,005.30
  6. Step 6: Final answer
    x = 20,862.15

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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.