Home / 21,357.16-29,473.33-11,925.72

Finding the Fourth Proportional to 21,357.16, 29,473.33 and 11,925.72

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Solution

The fourth proportional to 21,357.16, 29,473.33 and 11,925.72 is: 16,457.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,357.16 : 29,473.33 = 11,925.72 : x
  2. Step 2: Convert to fraction form
    21,357.16/29,473.33 = 11,925.72/x
  3. Step 3: Cross multiply
    21,357.16x = 29,473.33 × 11,925.72
  4. Step 4: Simplify right side
    21,357.16x = 351,490,681.05
  5. Step 5: Solve for x
    x = 351,490,681.05/21,357.16
  6. Step 6: Final answer
    x = 16,457.74

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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.