Home / 21,045.60-31,535.60-9,950.22

Finding the Fourth Proportional to 21,045.60, 31,535.60 and 9,950.22

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Solution

The fourth proportional to 21,045.60, 31,535.60 and 9,950.22 is: 14,909.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,045.60 : 31,535.60 = 9,950.22 : x
  2. Step 2: Convert to fraction form
    21,045.60/31,535.60 = 9,950.22/x
  3. Step 3: Cross multiply
    21,045.60x = 31,535.60 × 9,950.22
  4. Step 4: Simplify right side
    21,045.60x = 313,786,108.08
  5. Step 5: Solve for x
    x = 313,786,108.08/21,045.60
  6. Step 6: Final answer
    x = 14,909.82

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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.