Home / 21,417.34-29,559.03-12,340.93

Finding the Fourth Proportional to 21,417.34, 29,559.03 and 12,340.93

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Solution

The fourth proportional to 21,417.34, 29,559.03 and 12,340.93 is: 17,032.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,417.34 : 29,559.03 = 12,340.93 : x
  2. Step 2: Convert to fraction form
    21,417.34/29,559.03 = 12,340.93/x
  3. Step 3: Cross multiply
    21,417.34x = 29,559.03 × 12,340.93
  4. Step 4: Simplify right side
    21,417.34x = 364,785,920.10
  5. Step 5: Solve for x
    x = 364,785,920.10/21,417.34
  6. Step 6: Final answer
    x = 17,032.27

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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.