Home / 21,476.52-29,637.93-12,977.46

Finding the Fourth Proportional to 21,476.52, 29,637.93 and 12,977.46

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Solution

The fourth proportional to 21,476.52, 29,637.93 and 12,977.46 is: 17,909.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,476.52 : 29,637.93 = 12,977.46 : x
  2. Step 2: Convert to fraction form
    21,476.52/29,637.93 = 12,977.46/x
  3. Step 3: Cross multiply
    21,476.52x = 29,637.93 × 12,977.46
  4. Step 4: Simplify right side
    21,476.52x = 384,625,051.06
  5. Step 5: Solve for x
    x = 384,625,051.06/21,476.52
  6. Step 6: Final answer
    x = 17,909.10

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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.