Home / 30,518.83-42,113.95-16,905.95

Finding the Fourth Proportional to 30,518.83, 42,113.95 and 16,905.95

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Solution

The fourth proportional to 30,518.83, 42,113.95 and 16,905.95 is: 23,329.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,518.83 : 42,113.95 = 16,905.95 : x
  2. Step 2: Convert to fraction form
    30,518.83/42,113.95 = 16,905.95/x
  3. Step 3: Cross multiply
    30,518.83x = 42,113.95 × 16,905.95
  4. Step 4: Simplify right side
    30,518.83x = 711,976,396.02
  5. Step 5: Solve for x
    x = 711,976,396.02/30,518.83
  6. Step 6: Final answer
    x = 23,329.08

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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.