Home / 30,864.25-42,592.67-16,717.20

Finding the Fourth Proportional to 30,864.25, 42,592.67 and 16,717.20

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Solution

The fourth proportional to 30,864.25, 42,592.67 and 16,717.20 is: 23,069.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,864.25 : 42,592.67 = 16,717.20 : x
  2. Step 2: Convert to fraction form
    30,864.25/42,592.67 = 16,717.20/x
  3. Step 3: Cross multiply
    30,864.25x = 42,592.67 × 16,717.20
  4. Step 4: Simplify right side
    30,864.25x = 712,030,182.92
  5. Step 5: Solve for x
    x = 712,030,182.92/30,864.25
  6. Step 6: Final answer
    x = 23,069.74

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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.