Home / 21,482.01-29,645.73-13,931.46

Finding the Fourth Proportional to 21,482.01, 29,645.73 and 13,931.46

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Solution

The fourth proportional to 21,482.01, 29,645.73 and 13,931.46 is: 19,225.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,482.01 : 29,645.73 = 13,931.46 : x
  2. Step 2: Convert to fraction form
    21,482.01/29,645.73 = 13,931.46/x
  3. Step 3: Cross multiply
    21,482.01x = 29,645.73 × 13,931.46
  4. Step 4: Simplify right side
    21,482.01x = 413,008,301.67
  5. Step 5: Solve for x
    x = 413,008,301.67/21,482.01
  6. Step 6: Final answer
    x = 19,225.78

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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.