Home / 28,495.09-39,323.01-15,749.13

Finding the Fourth Proportional to 28,495.09, 39,323.01 and 15,749.13

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Solution

The fourth proportional to 28,495.09, 39,323.01 and 15,749.13 is: 21,733.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,495.09 : 39,323.01 = 15,749.13 : x
  2. Step 2: Convert to fraction form
    28,495.09/39,323.01 = 15,749.13/x
  3. Step 3: Cross multiply
    28,495.09x = 39,323.01 × 15,749.13
  4. Step 4: Simplify right side
    28,495.09x = 619,303,196.48
  5. Step 5: Solve for x
    x = 619,303,196.48/28,495.09
  6. Step 6: Final answer
    x = 21,733.68

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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.