Home / 28,579.74-39,430.17-17,970.18

Finding the Fourth Proportional to 28,579.74, 39,430.17 and 17,970.18

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Solution

The fourth proportional to 28,579.74, 39,430.17 and 17,970.18 is: 24,792.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,579.74 : 39,430.17 = 17,970.18 : x
  2. Step 2: Convert to fraction form
    28,579.74/39,430.17 = 17,970.18/x
  3. Step 3: Cross multiply
    28,579.74x = 39,430.17 × 17,970.18
  4. Step 4: Simplify right side
    28,579.74x = 708,567,252.33
  5. Step 5: Solve for x
    x = 708,567,252.33/28,579.74
  6. Step 6: Final answer
    x = 24,792.64

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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.