Home / 19,875.70-27,428.15-10,923.01

Finding the Fourth Proportional to 19,875.70, 27,428.15 and 10,923.01

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Solution

The fourth proportional to 19,875.70, 27,428.15 and 10,923.01 is: 15,073.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,875.70 : 27,428.15 = 10,923.01 : x
  2. Step 2: Convert to fraction form
    19,875.70/27,428.15 = 10,923.01/x
  3. Step 3: Cross multiply
    19,875.70x = 27,428.15 × 10,923.01
  4. Step 4: Simplify right side
    19,875.70x = 299,598,069.75
  5. Step 5: Solve for x
    x = 299,598,069.75/19,875.70
  6. Step 6: Final answer
    x = 15,073.58

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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.