Home / 19,721.36-29,582.29-5,681.61

Finding the Fourth Proportional to 19,721.36, 29,582.29 and 5,681.61

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Solution

The fourth proportional to 19,721.36, 29,582.29 and 5,681.61 is: 8,522.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,721.36 : 29,582.29 = 5,681.61 : x
  2. Step 2: Convert to fraction form
    19,721.36/29,582.29 = 5,681.61/x
  3. Step 3: Cross multiply
    19,721.36x = 29,582.29 × 5,681.61
  4. Step 4: Simplify right side
    19,721.36x = 168,075,034.69
  5. Step 5: Solve for x
    x = 168,075,034.69/19,721.36
  6. Step 6: Final answer
    x = 8,522.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.