Home / 31,052.85-42,853.50-16,905.93

Finding the Fourth Proportional to 31,052.85, 42,853.50 and 16,905.93

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Solution

The fourth proportional to 31,052.85, 42,853.50 and 16,905.93 is: 23,330.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,052.85 : 42,853.50 = 16,905.93 : x
  2. Step 2: Convert to fraction form
    31,052.85/42,853.50 = 16,905.93/x
  3. Step 3: Cross multiply
    31,052.85x = 42,853.50 × 16,905.93
  4. Step 4: Simplify right side
    31,052.85x = 724,478,271.26
  5. Step 5: Solve for x
    x = 724,478,271.26/31,052.85
  6. Step 6: Final answer
    x = 23,330.49

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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.