Home / 22,613.95-31,208.84-12,543.35

Finding the Fourth Proportional to 22,613.95, 31,208.84 and 12,543.35

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Solution

The fourth proportional to 22,613.95, 31,208.84 and 12,543.35 is: 17,310.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,613.95 : 31,208.84 = 12,543.35 : x
  2. Step 2: Convert to fraction form
    22,613.95/31,208.84 = 12,543.35/x
  3. Step 3: Cross multiply
    22,613.95x = 31,208.84 × 12,543.35
  4. Step 4: Simplify right side
    22,613.95x = 391,463,403.21
  5. Step 5: Solve for x
    x = 391,463,403.21/22,613.95
  6. Step 6: Final answer
    x = 17,310.70

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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.