Home / 27,970.64-41,931.12-10,428.56

Finding the Fourth Proportional to 27,970.64, 41,931.12 and 10,428.56

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Solution

The fourth proportional to 27,970.64, 41,931.12 and 10,428.56 is: 15,633.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,970.64 : 41,931.12 = 10,428.56 : x
  2. Step 2: Convert to fraction form
    27,970.64/41,931.12 = 10,428.56/x
  3. Step 3: Cross multiply
    27,970.64x = 41,931.12 × 10,428.56
  4. Step 4: Simplify right side
    27,970.64x = 437,281,200.79
  5. Step 5: Solve for x
    x = 437,281,200.79/27,970.64
  6. Step 6: Final answer
    x = 15,633.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.