Home / 28,495.68-39,323.89-15,749.76

Finding the Fourth Proportional to 28,495.68, 39,323.89 and 15,749.76

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Solution

The fourth proportional to 28,495.68, 39,323.89 and 15,749.76 is: 21,734.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,495.68 : 39,323.89 = 15,749.76 : x
  2. Step 2: Convert to fraction form
    28,495.68/39,323.89 = 15,749.76/x
  3. Step 3: Cross multiply
    28,495.68x = 39,323.89 × 15,749.76
  4. Step 4: Simplify right side
    28,495.68x = 619,341,829.77
  5. Step 5: Solve for x
    x = 619,341,829.77/28,495.68
  6. Step 6: Final answer
    x = 21,734.59

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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.