Home / 30,312.34-41,848.38-20,257.81

Finding the Fourth Proportional to 30,312.34, 41,848.38 and 20,257.81

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Solution

The fourth proportional to 30,312.34, 41,848.38 and 20,257.81 is: 27,967.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,312.34 : 41,848.38 = 20,257.81 : x
  2. Step 2: Convert to fraction form
    30,312.34/41,848.38 = 20,257.81/x
  3. Step 3: Cross multiply
    30,312.34x = 41,848.38 × 20,257.81
  4. Step 4: Simplify right side
    30,312.34x = 847,756,220.32
  5. Step 5: Solve for x
    x = 847,756,220.32/30,312.34
  6. Step 6: Final answer
    x = 27,967.37

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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.