Home / 21,320.13-29,427.06-14,525.40

Finding the Fourth Proportional to 21,320.13, 29,427.06 and 14,525.40

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Solution

The fourth proportional to 21,320.13, 29,427.06 and 14,525.40 is: 20,048.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,320.13 : 29,427.06 = 14,525.40 : x
  2. Step 2: Convert to fraction form
    21,320.13/29,427.06 = 14,525.40/x
  3. Step 3: Cross multiply
    21,320.13x = 29,427.06 × 14,525.40
  4. Step 4: Simplify right side
    21,320.13x = 427,439,706.97
  5. Step 5: Solve for x
    x = 427,439,706.97/21,320.13
  6. Step 6: Final answer
    x = 20,048.64

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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.