Home / 28,386.90-39,173.93-16,457.16

Finding the Fourth Proportional to 28,386.90, 39,173.93 and 16,457.16

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Solution

The fourth proportional to 28,386.90, 39,173.93 and 16,457.16 is: 22,710.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,386.90 : 39,173.93 = 16,457.16 : x
  2. Step 2: Convert to fraction form
    28,386.90/39,173.93 = 16,457.16/x
  3. Step 3: Cross multiply
    28,386.90x = 39,173.93 × 16,457.16
  4. Step 4: Simplify right side
    28,386.90x = 644,691,633.84
  5. Step 5: Solve for x
    x = 644,691,633.84/28,386.90
  6. Step 6: Final answer
    x = 22,710.89

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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.