Home / 24,720.79-34,114.73-13,390.31

Finding the Fourth Proportional to 24,720.79, 34,114.73 and 13,390.31

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Solution

The fourth proportional to 24,720.79, 34,114.73 and 13,390.31 is: 18,478.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    24,720.79 : 34,114.73 = 13,390.31 : x
  2. Step 2: Convert to fraction form
    24,720.79/34,114.73 = 13,390.31/x
  3. Step 3: Cross multiply
    24,720.79x = 34,114.73 × 13,390.31
  4. Step 4: Simplify right side
    24,720.79x = 456,806,810.27
  5. Step 5: Solve for x
    x = 456,806,810.27/24,720.79
  6. Step 6: Final answer
    x = 18,478.65

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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.