Home / 31,088.66-42,902.36-16,941.50

Finding the Fourth Proportional to 31,088.66, 42,902.36 and 16,941.50

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Solution

The fourth proportional to 31,088.66, 42,902.36 and 16,941.50 is: 23,379.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,088.66 : 42,902.36 = 16,941.50 : x
  2. Step 2: Convert to fraction form
    31,088.66/42,902.36 = 16,941.50/x
  3. Step 3: Cross multiply
    31,088.66x = 42,902.36 × 16,941.50
  4. Step 4: Simplify right side
    31,088.66x = 726,830,331.94
  5. Step 5: Solve for x
    x = 726,830,331.94/31,088.66
  6. Step 6: Final answer
    x = 23,379.28

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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.