Home / 22,421.13-30,941.15-12,995.16

Finding the Fourth Proportional to 22,421.13, 30,941.15 and 12,995.16

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Solution

The fourth proportional to 22,421.13, 30,941.15 and 12,995.16 is: 17,933.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,421.13 : 30,941.15 = 12,995.16 : x
  2. Step 2: Convert to fraction form
    22,421.13/30,941.15 = 12,995.16/x
  3. Step 3: Cross multiply
    22,421.13x = 30,941.15 × 12,995.16
  4. Step 4: Simplify right side
    22,421.13x = 402,085,194.83
  5. Step 5: Solve for x
    x = 402,085,194.83/22,421.13
  6. Step 6: Final answer
    x = 17,933.32

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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.