Home / 28,557.84-39,407.91-16,619.28

Finding the Fourth Proportional to 28,557.84, 39,407.91 and 16,619.28

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Solution

The fourth proportional to 28,557.84, 39,407.91 and 16,619.28 is: 22,933.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,557.84 : 39,407.91 = 16,619.28 : x
  2. Step 2: Convert to fraction form
    28,557.84/39,407.91 = 16,619.28/x
  3. Step 3: Cross multiply
    28,557.84x = 39,407.91 × 16,619.28
  4. Step 4: Simplify right side
    28,557.84x = 654,931,090.50
  5. Step 5: Solve for x
    x = 654,931,090.50/28,557.84
  6. Step 6: Final answer
    x = 22,933.50

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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.