Home / 30,477.13-45,721.38-13,838.32

Finding the Fourth Proportional to 30,477.13, 45,721.38 and 13,838.32

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Solution

The fourth proportional to 30,477.13, 45,721.38 and 13,838.32 is: 20,760.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,477.13 : 45,721.38 = 13,838.32 : x
  2. Step 2: Convert to fraction form
    30,477.13/45,721.38 = 13,838.32/x
  3. Step 3: Cross multiply
    30,477.13x = 45,721.38 × 13,838.32
  4. Step 4: Simplify right side
    30,477.13x = 632,707,087.28
  5. Step 5: Solve for x
    x = 632,707,087.28/30,477.13
  6. Step 6: Final answer
    x = 20,760.06

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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.