Home / 15,501.72-21,106.18-15,452.51

Finding the Fourth Proportional to 15,501.72, 21,106.18 and 15,452.51

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Solution

The fourth proportional to 15,501.72, 21,106.18 and 15,452.51 is: 21,039.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,501.72 : 21,106.18 = 15,452.51 : x
  2. Step 2: Convert to fraction form
    15,501.72/21,106.18 = 15,452.51/x
  3. Step 3: Cross multiply
    15,501.72x = 21,106.18 × 15,452.51
  4. Step 4: Simplify right side
    15,501.72x = 326,143,471.65
  5. Step 5: Solve for x
    x = 326,143,471.65/15,501.72
  6. Step 6: Final answer
    x = 21,039.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.