Home / 30,851.10-42,589.32-19,526.09

Finding the Fourth Proportional to 30,851.10, 42,589.32 and 19,526.09

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Solution

The fourth proportional to 30,851.10, 42,589.32 and 19,526.09 is: 26,955.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,851.10 : 42,589.32 = 19,526.09 : x
  2. Step 2: Convert to fraction form
    30,851.10/42,589.32 = 19,526.09/x
  3. Step 3: Cross multiply
    30,851.10x = 42,589.32 × 19,526.09
  4. Step 4: Simplify right side
    30,851.10x = 831,602,682.41
  5. Step 5: Solve for x
    x = 831,602,682.41/30,851.10
  6. Step 6: Final answer
    x = 26,955.37

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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.