Home / 27,557.90-38,030.34-15,620.99

Finding the Fourth Proportional to 27,557.90, 38,030.34 and 15,620.99

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Solution

The fourth proportional to 27,557.90, 38,030.34 and 15,620.99 is: 21,557.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,557.90 : 38,030.34 = 15,620.99 : x
  2. Step 2: Convert to fraction form
    27,557.90/38,030.34 = 15,620.99/x
  3. Step 3: Cross multiply
    27,557.90x = 38,030.34 × 15,620.99
  4. Step 4: Simplify right side
    27,557.90x = 594,071,560.84
  5. Step 5: Solve for x
    x = 594,071,560.84/27,557.90
  6. Step 6: Final answer
    x = 21,557.21

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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.