Home / 34,272.05-47,282.13-21,519.81

Finding the Fourth Proportional to 34,272.05, 47,282.13 and 21,519.81

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Solution

The fourth proportional to 34,272.05, 47,282.13 and 21,519.81 is: 29,688.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,272.05 : 47,282.13 = 21,519.81 : x
  2. Step 2: Convert to fraction form
    34,272.05/47,282.13 = 21,519.81/x
  3. Step 3: Cross multiply
    34,272.05x = 47,282.13 × 21,519.81
  4. Step 4: Simplify right side
    34,272.05x = 1,017,502,454.00
  5. Step 5: Solve for x
    x = 1,017,502,454.00/34,272.05
  6. Step 6: Final answer
    x = 29,688.99

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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.