Home / 28,688.89-42,984.80-17,572.39

Finding the Fourth Proportional to 28,688.89, 42,984.80 and 17,572.39

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Solution

The fourth proportional to 28,688.89, 42,984.80 and 17,572.39 is: 26,328.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,688.89 : 42,984.80 = 17,572.39 : x
  2. Step 2: Convert to fraction form
    28,688.89/42,984.80 = 17,572.39/x
  3. Step 3: Cross multiply
    28,688.89x = 42,984.80 × 17,572.39
  4. Step 4: Simplify right side
    28,688.89x = 755,345,669.67
  5. Step 5: Solve for x
    x = 755,345,669.67/28,688.89
  6. Step 6: Final answer
    x = 26,328.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.