Home / 27,455.64-37,888.50-15,355.99

Finding the Fourth Proportional to 27,455.64, 37,888.50 and 15,355.99

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Solution

The fourth proportional to 27,455.64, 37,888.50 and 15,355.99 is: 21,191.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,455.64 : 37,888.50 = 15,355.99 : x
  2. Step 2: Convert to fraction form
    27,455.64/37,888.50 = 15,355.99/x
  3. Step 3: Cross multiply
    27,455.64x = 37,888.50 × 15,355.99
  4. Step 4: Simplify right side
    27,455.64x = 581,815,427.12
  5. Step 5: Solve for x
    x = 581,815,427.12/27,455.64
  6. Step 6: Final answer
    x = 21,191.11

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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.