Home / 30,610.47-42,242.91-16,813.95

Finding the Fourth Proportional to 30,610.47, 42,242.91 and 16,813.95

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Solution

The fourth proportional to 30,610.47, 42,242.91 and 16,813.95 is: 23,203.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,610.47 : 42,242.91 = 16,813.95 : x
  2. Step 2: Convert to fraction form
    30,610.47/42,242.91 = 16,813.95/x
  3. Step 3: Cross multiply
    30,610.47x = 42,242.91 × 16,813.95
  4. Step 4: Simplify right side
    30,610.47x = 710,270,176.59
  5. Step 5: Solve for x
    x = 710,270,176.59/30,610.47
  6. Step 6: Final answer
    x = 23,203.50

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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.