Home / 21,482.83-29,639.65-12,523.99

Finding the Fourth Proportional to 21,482.83, 29,639.65 and 12,523.99

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Solution

The fourth proportional to 21,482.83, 29,639.65 and 12,523.99 is: 17,279.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,482.83 : 29,639.65 = 12,523.99 : x
  2. Step 2: Convert to fraction form
    21,482.83/29,639.65 = 12,523.99/x
  3. Step 3: Cross multiply
    21,482.83x = 29,639.65 × 12,523.99
  4. Step 4: Simplify right side
    21,482.83x = 371,206,532.01
  5. Step 5: Solve for x
    x = 371,206,532.01/21,482.83
  6. Step 6: Final answer
    x = 17,279.22

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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.