Home / 21,434.43-29,574.73-12,937.93

Finding the Fourth Proportional to 21,434.43, 29,574.73 and 12,937.93

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Solution

The fourth proportional to 21,434.43, 29,574.73 and 12,937.93 is: 17,851.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,434.43 : 29,574.73 = 12,937.93 : x
  2. Step 2: Convert to fraction form
    21,434.43/29,574.73 = 12,937.93/x
  3. Step 3: Cross multiply
    21,434.43x = 29,574.73 × 12,937.93
  4. Step 4: Simplify right side
    21,434.43x = 382,635,786.51
  5. Step 5: Solve for x
    x = 382,635,786.51/21,434.43
  6. Step 6: Final answer
    x = 17,851.46

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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.