Home / 29,309.77-40,447.53-15,881.14

Finding the Fourth Proportional to 29,309.77, 40,447.53 and 15,881.14

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Solution

The fourth proportional to 29,309.77, 40,447.53 and 15,881.14 is: 21,916.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,309.77 : 40,447.53 = 15,881.14 : x
  2. Step 2: Convert to fraction form
    29,309.77/40,447.53 = 15,881.14/x
  3. Step 3: Cross multiply
    29,309.77x = 40,447.53 × 15,881.14
  4. Step 4: Simplify right side
    29,309.77x = 642,352,886.58
  5. Step 5: Solve for x
    x = 642,352,886.58/29,309.77
  6. Step 6: Final answer
    x = 21,916.00

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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.