Home / 28,039.42-38,695.03-15,937.98

Finding the Fourth Proportional to 28,039.42, 38,695.03 and 15,937.98

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Solution

The fourth proportional to 28,039.42, 38,695.03 and 15,937.98 is: 21,994.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,039.42 : 38,695.03 = 15,937.98 : x
  2. Step 2: Convert to fraction form
    28,039.42/38,695.03 = 15,937.98/x
  3. Step 3: Cross multiply
    28,039.42x = 38,695.03 × 15,937.98
  4. Step 4: Simplify right side
    28,039.42x = 616,720,574.39
  5. Step 5: Solve for x
    x = 616,720,574.39/28,039.42
  6. Step 6: Final answer
    x = 21,994.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.