Home / 19,924.48-27,477.12-15,742.72

Finding the Fourth Proportional to 19,924.48, 27,477.12 and 15,742.72

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Solution

The fourth proportional to 19,924.48, 27,477.12 and 15,742.72 is: 21,710.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,924.48 : 27,477.12 = 15,742.72 : x
  2. Step 2: Convert to fraction form
    19,924.48/27,477.12 = 15,742.72/x
  3. Step 3: Cross multiply
    19,924.48x = 27,477.12 × 15,742.72
  4. Step 4: Simplify right side
    19,924.48x = 432,564,606.57
  5. Step 5: Solve for x
    x = 432,564,606.57/19,924.48
  6. Step 6: Final answer
    x = 21,710.21

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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.