Home / 27,575.64-38,056.28-15,639.76

Finding the Fourth Proportional to 27,575.64, 38,056.28 and 15,639.76

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Solution

The fourth proportional to 27,575.64, 38,056.28 and 15,639.76 is: 21,583.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,575.64 : 38,056.28 = 15,639.76 : x
  2. Step 2: Convert to fraction form
    27,575.64/38,056.28 = 15,639.76/x
  3. Step 3: Cross multiply
    27,575.64x = 38,056.28 × 15,639.76
  4. Step 4: Simplify right side
    27,575.64x = 595,191,036.00
  5. Step 5: Solve for x
    x = 595,191,036.00/27,575.64
  6. Step 6: Final answer
    x = 21,583.94

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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.