Home / 51,420.79-70,957.74-28,449.28

Finding the Fourth Proportional to 51,420.79, 70,957.74 and 28,449.28

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Solution

The fourth proportional to 51,420.79, 70,957.74 and 28,449.28 is: 39,258.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,420.79 : 70,957.74 = 28,449.28 : x
  2. Step 2: Convert to fraction form
    51,420.79/70,957.74 = 28,449.28/x
  3. Step 3: Cross multiply
    51,420.79x = 70,957.74 × 28,449.28
  4. Step 4: Simplify right side
    51,420.79x = 2,018,696,613.43
  5. Step 5: Solve for x
    x = 2,018,696,613.43/51,420.79
  6. Step 6: Final answer
    x = 39,258.37

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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.