Home / 28,856.48-39,823.08-16,918.16

Finding the Fourth Proportional to 28,856.48, 39,823.08 and 16,918.16

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Solution

The fourth proportional to 28,856.48, 39,823.08 and 16,918.16 is: 23,347.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,856.48 : 39,823.08 = 16,918.16 : x
  2. Step 2: Convert to fraction form
    28,856.48/39,823.08 = 16,918.16/x
  3. Step 3: Cross multiply
    28,856.48x = 39,823.08 × 16,918.16
  4. Step 4: Simplify right side
    28,856.48x = 673,733,239.13
  5. Step 5: Solve for x
    x = 673,733,239.13/28,856.48
  6. Step 6: Final answer
    x = 23,347.73

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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.