Home / 25,637.84-38,389.62-20,613.51

Finding the Fourth Proportional to 25,637.84, 38,389.62 and 20,613.51

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Solution

The fourth proportional to 25,637.84, 38,389.62 and 20,613.51 is: 30,866.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,637.84 : 38,389.62 = 20,613.51 : x
  2. Step 2: Convert to fraction form
    25,637.84/38,389.62 = 20,613.51/x
  3. Step 3: Cross multiply
    25,637.84x = 38,389.62 × 20,613.51
  4. Step 4: Simplify right side
    25,637.84x = 791,344,815.77
  5. Step 5: Solve for x
    x = 791,344,815.77/25,637.84
  6. Step 6: Final answer
    x = 30,866.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.