Home / 22,289.40-30,780.18-14,345.46

Finding the Fourth Proportional to 22,289.40, 30,780.18 and 14,345.46

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Solution

The fourth proportional to 22,289.40, 30,780.18 and 14,345.46 is: 19,810.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,289.40 : 30,780.18 = 14,345.46 : x
  2. Step 2: Convert to fraction form
    22,289.40/30,780.18 = 14,345.46/x
  3. Step 3: Cross multiply
    22,289.40x = 30,780.18 × 14,345.46
  4. Step 4: Simplify right side
    22,289.40x = 441,555,840.98
  5. Step 5: Solve for x
    x = 441,555,840.98/22,289.40
  6. Step 6: Final answer
    x = 19,810.13

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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.