Home / 29,688.16-40,971.68-17,113.76

Finding the Fourth Proportional to 29,688.16, 40,971.68 and 17,113.76

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Solution

The fourth proportional to 29,688.16, 40,971.68 and 17,113.76 is: 23,618.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,688.16 : 40,971.68 = 17,113.76 : x
  2. Step 2: Convert to fraction form
    29,688.16/40,971.68 = 17,113.76/x
  3. Step 3: Cross multiply
    29,688.16x = 40,971.68 × 17,113.76
  4. Step 4: Simplify right side
    29,688.16x = 701,179,498.32
  5. Step 5: Solve for x
    x = 701,179,498.32/29,688.16
  6. Step 6: Final answer
    x = 23,618.15

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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.