Home / 30,810.87-42,518.93-16,663.95

Finding the Fourth Proportional to 30,810.87, 42,518.93 and 16,663.95

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Solution

The fourth proportional to 30,810.87, 42,518.93 and 16,663.95 is: 22,996.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,810.87 : 42,518.93 = 16,663.95 : x
  2. Step 2: Convert to fraction form
    30,810.87/42,518.93 = 16,663.95/x
  3. Step 3: Cross multiply
    30,810.87x = 42,518.93 × 16,663.95
  4. Step 4: Simplify right side
    30,810.87x = 708,533,240.25
  5. Step 5: Solve for x
    x = 708,533,240.25/30,810.87
  6. Step 6: Final answer
    x = 22,996.21

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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.