Home / 21,666.58-29,901.27-12,710.81

Finding the Fourth Proportional to 21,666.58, 29,901.27 and 12,710.81

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Solution

The fourth proportional to 21,666.58, 29,901.27 and 12,710.81 is: 17,541.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,666.58 : 29,901.27 = 12,710.81 : x
  2. Step 2: Convert to fraction form
    21,666.58/29,901.27 = 12,710.81/x
  3. Step 3: Cross multiply
    21,666.58x = 29,901.27 × 12,710.81
  4. Step 4: Simplify right side
    21,666.58x = 380,069,540.21
  5. Step 5: Solve for x
    x = 380,069,540.21/21,666.58
  6. Step 6: Final answer
    x = 17,541.74

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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.