Home / 21,062.51-31,457.20-19,084.19

Finding the Fourth Proportional to 21,062.51, 31,457.20 and 19,084.19

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Solution

The fourth proportional to 21,062.51, 31,457.20 and 19,084.19 is: 28,502.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,062.51 : 31,457.20 = 19,084.19 : x
  2. Step 2: Convert to fraction form
    21,062.51/31,457.20 = 19,084.19/x
  3. Step 3: Cross multiply
    21,062.51x = 31,457.20 × 19,084.19
  4. Step 4: Simplify right side
    21,062.51x = 600,335,181.67
  5. Step 5: Solve for x
    x = 600,335,181.67/21,062.51
  6. Step 6: Final answer
    x = 28,502.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.