Home / 19,875.90-27,428.52-10,923.31

Finding the Fourth Proportional to 19,875.90, 27,428.52 and 10,923.31

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Solution

The fourth proportional to 19,875.90, 27,428.52 and 10,923.31 is: 15,074.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,875.90 : 27,428.52 = 10,923.31 : x
  2. Step 2: Convert to fraction form
    19,875.90/27,428.52 = 10,923.31/x
  3. Step 3: Cross multiply
    19,875.90x = 27,428.52 × 10,923.31
  4. Step 4: Simplify right side
    19,875.90x = 299,610,226.80
  5. Step 5: Solve for x
    x = 299,610,226.80/19,875.90
  6. Step 6: Final answer
    x = 15,074.05

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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.