Home / 25,913.04-38,881.84-13,430.72

Finding the Fourth Proportional to 25,913.04, 38,881.84 and 13,430.72

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Solution

The fourth proportional to 25,913.04, 38,881.84 and 13,430.72 is: 20,152.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,913.04 : 38,881.84 = 13,430.72 : x
  2. Step 2: Convert to fraction form
    25,913.04/38,881.84 = 13,430.72/x
  3. Step 3: Cross multiply
    25,913.04x = 38,881.84 × 13,430.72
  4. Step 4: Simplify right side
    25,913.04x = 522,211,106.12
  5. Step 5: Solve for x
    x = 522,211,106.12/25,913.04
  6. Step 6: Final answer
    x = 20,152.44

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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.