Home / 30,810.68-42,518.64-16,663.52

Finding the Fourth Proportional to 30,810.68, 42,518.64 and 16,663.52

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Solution

The fourth proportional to 30,810.68, 42,518.64 and 16,663.52 is: 22,995.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,810.68 : 42,518.64 = 16,663.52 : x
  2. Step 2: Convert to fraction form
    30,810.68/42,518.64 = 16,663.52/x
  3. Step 3: Cross multiply
    30,810.68x = 42,518.64 × 16,663.52
  4. Step 4: Simplify right side
    30,810.68x = 708,510,208.01
  5. Step 5: Solve for x
    x = 708,510,208.01/30,810.68
  6. Step 6: Final answer
    x = 22,995.60

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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.