Home / 47,688.12-71,531.64-19,621.08

Finding the Fourth Proportional to 47,688.12, 71,531.64 and 19,621.08

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Solution

The fourth proportional to 47,688.12, 71,531.64 and 19,621.08 is: 29,431.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,688.12 : 71,531.64 = 19,621.08 : x
  2. Step 2: Convert to fraction form
    47,688.12/71,531.64 = 19,621.08/x
  3. Step 3: Cross multiply
    47,688.12x = 71,531.64 × 19,621.08
  4. Step 4: Simplify right side
    47,688.12x = 1,403,528,030.97
  5. Step 5: Solve for x
    x = 1,403,528,030.97/47,688.12
  6. Step 6: Final answer
    x = 29,431.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.