Home / 30,433.50-45,580.98-21,030.92

Finding the Fourth Proportional to 30,433.50, 45,580.98 and 21,030.92

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Solution

The fourth proportional to 30,433.50, 45,580.98 and 21,030.92 is: 31,498.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,433.50 : 45,580.98 = 21,030.92 : x
  2. Step 2: Convert to fraction form
    30,433.50/45,580.98 = 21,030.92/x
  3. Step 3: Cross multiply
    30,433.50x = 45,580.98 × 21,030.92
  4. Step 4: Simplify right side
    30,433.50x = 958,609,943.90
  5. Step 5: Solve for x
    x = 958,609,943.90/30,433.50
  6. Step 6: Final answer
    x = 31,498.51

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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.