Home / 21,935.74-30,271.33-12,377.66

Finding the Fourth Proportional to 21,935.74, 30,271.33 and 12,377.66

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Solution

The fourth proportional to 21,935.74, 30,271.33 and 12,377.66 is: 17,081.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,935.74 : 30,271.33 = 12,377.66 : x
  2. Step 2: Convert to fraction form
    21,935.74/30,271.33 = 12,377.66/x
  3. Step 3: Cross multiply
    21,935.74x = 30,271.33 × 12,377.66
  4. Step 4: Simplify right side
    21,935.74x = 374,688,154.81
  5. Step 5: Solve for x
    x = 374,688,154.81/21,935.74
  6. Step 6: Final answer
    x = 17,081.17

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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.