Home / 28,762.88-39,705.01-19,336.91

Finding the Fourth Proportional to 28,762.88, 39,705.01 and 19,336.91

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Solution

The fourth proportional to 28,762.88, 39,705.01 and 19,336.91 is: 26,693.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,762.88 : 39,705.01 = 19,336.91 : x
  2. Step 2: Convert to fraction form
    28,762.88/39,705.01 = 19,336.91/x
  3. Step 3: Cross multiply
    28,762.88x = 39,705.01 × 19,336.91
  4. Step 4: Simplify right side
    28,762.88x = 767,772,204.92
  5. Step 5: Solve for x
    x = 767,772,204.92/28,762.88
  6. Step 6: Final answer
    x = 26,693.16

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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.