Home / 15,459.88-21,282.99-14,754.64

Finding the Fourth Proportional to 15,459.88, 21,282.99 and 14,754.64

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Solution

The fourth proportional to 15,459.88, 21,282.99 and 14,754.64 is: 20,312.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,459.88 : 21,282.99 = 14,754.64 : x
  2. Step 2: Convert to fraction form
    15,459.88/21,282.99 = 14,754.64/x
  3. Step 3: Cross multiply
    15,459.88x = 21,282.99 × 14,754.64
  4. Step 4: Simplify right side
    15,459.88x = 314,022,855.57
  5. Step 5: Solve for x
    x = 314,022,855.57/15,459.88
  6. Step 6: Final answer
    x = 20,312.11

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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.