Home / 19,964.48-27,547.36-12,412.80

Finding the Fourth Proportional to 19,964.48, 27,547.36 and 12,412.80

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Solution

The fourth proportional to 19,964.48, 27,547.36 and 12,412.80 is: 17,127.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,964.48 : 27,547.36 = 12,412.80 : x
  2. Step 2: Convert to fraction form
    19,964.48/27,547.36 = 12,412.80/x
  3. Step 3: Cross multiply
    19,964.48x = 27,547.36 × 12,412.80
  4. Step 4: Simplify right side
    19,964.48x = 341,939,870.21
  5. Step 5: Solve for x
    x = 341,939,870.21/19,964.48
  6. Step 6: Final answer
    x = 17,127.41

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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.