Home / 28,327.77-39,091.55-15,580.98

Finding the Fourth Proportional to 28,327.77, 39,091.55 and 15,580.98

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Solution

The fourth proportional to 28,327.77, 39,091.55 and 15,580.98 is: 21,501.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,327.77 : 39,091.55 = 15,580.98 : x
  2. Step 2: Convert to fraction form
    28,327.77/39,091.55 = 15,580.98/x
  3. Step 3: Cross multiply
    28,327.77x = 39,091.55 × 15,580.98
  4. Step 4: Simplify right side
    28,327.77x = 609,084,580.81
  5. Step 5: Solve for x
    x = 609,084,580.81/28,327.77
  6. Step 6: Final answer
    x = 21,501.32

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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.