Home / 31,459.42-47,177.79-10,678.06

Finding the Fourth Proportional to 31,459.42, 47,177.79 and 10,678.06

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Solution

The fourth proportional to 31,459.42, 47,177.79 and 10,678.06 is: 16,013.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,459.42 : 47,177.79 = 10,678.06 : x
  2. Step 2: Convert to fraction form
    31,459.42/47,177.79 = 10,678.06/x
  3. Step 3: Cross multiply
    31,459.42x = 47,177.79 × 10,678.06
  4. Step 4: Simplify right side
    31,459.42x = 503,767,272.29
  5. Step 5: Solve for x
    x = 503,767,272.29/31,459.42
  6. Step 6: Final answer
    x = 16,013.24

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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.