Home / 31,526.69-43,503.10-21,451.91

Finding the Fourth Proportional to 31,526.69, 43,503.10 and 21,451.91

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Solution

The fourth proportional to 31,526.69, 43,503.10 and 21,451.91 is: 29,601.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,526.69 : 43,503.10 = 21,451.91 : x
  2. Step 2: Convert to fraction form
    31,526.69/43,503.10 = 21,451.91/x
  3. Step 3: Cross multiply
    31,526.69x = 43,503.10 × 21,451.91
  4. Step 4: Simplify right side
    31,526.69x = 933,224,585.92
  5. Step 5: Solve for x
    x = 933,224,585.92/31,526.69
  6. Step 6: Final answer
    x = 29,601.10

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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.