Home / 28,913.40-43,386.52-13,331.04

Finding the Fourth Proportional to 28,913.40, 43,386.52 and 13,331.04

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Solution

The fourth proportional to 28,913.40, 43,386.52 and 13,331.04 is: 20,004.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,913.40 : 43,386.52 = 13,331.04 : x
  2. Step 2: Convert to fraction form
    28,913.40/43,386.52 = 13,331.04/x
  3. Step 3: Cross multiply
    28,913.40x = 43,386.52 × 13,331.04
  4. Step 4: Simplify right side
    28,913.40x = 578,387,433.58
  5. Step 5: Solve for x
    x = 578,387,433.58/28,913.40
  6. Step 6: Final answer
    x = 20,004.13

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1.5x scale

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.