Home / 30,865.22-42,594.10-16,718.07

Finding the Fourth Proportional to 30,865.22, 42,594.10 and 16,718.07

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Solution

The fourth proportional to 30,865.22, 42,594.10 and 16,718.07 is: 23,070.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,865.22 : 42,594.10 = 16,718.07 : x
  2. Step 2: Convert to fraction form
    30,865.22/42,594.10 = 16,718.07/x
  3. Step 3: Cross multiply
    30,865.22x = 42,594.10 × 16,718.07
  4. Step 4: Simplify right side
    30,865.22x = 712,090,943.86
  5. Step 5: Solve for x
    x = 712,090,943.86/30,865.22
  6. Step 6: Final answer
    x = 23,070.98

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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.