Home / 22,515.69-31,069.63-12,953.04

Finding the Fourth Proportional to 22,515.69, 31,069.63 and 12,953.04

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Solution

The fourth proportional to 22,515.69, 31,069.63 and 12,953.04 is: 17,874.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,515.69 : 31,069.63 = 12,953.04 : x
  2. Step 2: Convert to fraction form
    22,515.69/31,069.63 = 12,953.04/x
  3. Step 3: Cross multiply
    22,515.69x = 31,069.63 × 12,953.04
  4. Step 4: Simplify right side
    22,515.69x = 402,446,160.18
  5. Step 5: Solve for x
    x = 402,446,160.18/22,515.69
  6. Step 6: Final answer
    x = 17,874.03

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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.