Home / 28,430.93-39,250.74-18,887.18

Finding the Fourth Proportional to 28,430.93, 39,250.74 and 18,887.18

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Solution

The fourth proportional to 28,430.93, 39,250.74 and 18,887.18 is: 26,074.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,430.93 : 39,250.74 = 18,887.18 : x
  2. Step 2: Convert to fraction form
    28,430.93/39,250.74 = 18,887.18/x
  3. Step 3: Cross multiply
    28,430.93x = 39,250.74 × 18,887.18
  4. Step 4: Simplify right side
    28,430.93x = 741,335,595.26
  5. Step 5: Solve for x
    x = 741,335,595.26/28,430.93
  6. Step 6: Final answer
    x = 26,074.97

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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.