Home / 15,421.49-23,133.38-13,585.32

Finding the Fourth Proportional to 15,421.49, 23,133.38 and 13,585.32

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Solution

The fourth proportional to 15,421.49, 23,133.38 and 13,585.32 is: 20,378.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,421.49 : 23,133.38 = 13,585.32 : x
  2. Step 2: Convert to fraction form
    15,421.49/23,133.38 = 13,585.32/x
  3. Step 3: Cross multiply
    15,421.49x = 23,133.38 × 13,585.32
  4. Step 4: Simplify right side
    15,421.49x = 314,274,369.98
  5. Step 5: Solve for x
    x = 314,274,369.98/15,421.49
  6. Step 6: Final answer
    x = 20,378.99

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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.