Home / 31,088.61-42,902.14-16,941.45

Finding the Fourth Proportional to 31,088.61, 42,902.14 and 16,941.45

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Solution

The fourth proportional to 31,088.61, 42,902.14 and 16,941.45 is: 23,379.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,088.61 : 42,902.14 = 16,941.45 : x
  2. Step 2: Convert to fraction form
    31,088.61/42,902.14 = 16,941.45/x
  3. Step 3: Cross multiply
    31,088.61x = 42,902.14 × 16,941.45
  4. Step 4: Simplify right side
    31,088.61x = 726,824,459.70
  5. Step 5: Solve for x
    x = 726,824,459.70/31,088.61
  6. Step 6: Final answer
    x = 23,379.12

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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.