Home / 19,557.84-26,972.40-15,358.80

Finding the Fourth Proportional to 19,557.84, 26,972.40 and 15,358.80

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Solution

The fourth proportional to 19,557.84, 26,972.40 and 15,358.80 is: 21,181.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,557.84 : 26,972.40 = 15,358.80 : x
  2. Step 2: Convert to fraction form
    19,557.84/26,972.40 = 15,358.80/x
  3. Step 3: Cross multiply
    19,557.84x = 26,972.40 × 15,358.80
  4. Step 4: Simplify right side
    19,557.84x = 414,263,697.12
  5. Step 5: Solve for x
    x = 414,263,697.12/19,557.84
  6. Step 6: Final answer
    x = 21,181.46

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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.