Home / 19,875.80-27,428.56-10,801.18

Finding the Fourth Proportional to 19,875.80, 27,428.56 and 10,801.18

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Solution

The fourth proportional to 19,875.80, 27,428.56 and 10,801.18 is: 14,905.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,875.80 : 27,428.56 = 10,801.18 : x
  2. Step 2: Convert to fraction form
    19,875.80/27,428.56 = 10,801.18/x
  3. Step 3: Cross multiply
    19,875.80x = 27,428.56 × 10,801.18
  4. Step 4: Simplify right side
    19,875.80x = 296,260,813.70
  5. Step 5: Solve for x
    x = 296,260,813.70/19,875.80
  6. Step 6: Final answer
    x = 14,905.60

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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.