Home / 19,875.74-27,429.10-10,923.31

Finding the Fourth Proportional to 19,875.74, 27,429.10 and 10,923.31

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Solution

The fourth proportional to 19,875.74, 27,429.10 and 10,923.31 is: 15,074.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,875.74 : 27,429.10 = 10,923.31 : x
  2. Step 2: Convert to fraction form
    19,875.74/27,429.10 = 10,923.31/x
  3. Step 3: Cross multiply
    19,875.74x = 27,429.10 × 10,923.31
  4. Step 4: Simplify right side
    19,875.74x = 299,616,569.30
  5. Step 5: Solve for x
    x = 299,616,569.30/19,875.74
  6. Step 6: Final answer
    x = 15,074.49

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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.