Home / 25,341.69-34,970.46-15,000.15

Finding the Fourth Proportional to 25,341.69, 34,970.46 and 15,000.15

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Solution

The fourth proportional to 25,341.69, 34,970.46 and 15,000.15 is: 20,699.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,341.69 : 34,970.46 = 15,000.15 : x
  2. Step 2: Convert to fraction form
    25,341.69/34,970.46 = 15,000.15/x
  3. Step 3: Cross multiply
    25,341.69x = 34,970.46 × 15,000.15
  4. Step 4: Simplify right side
    25,341.69x = 524,562,145.57
  5. Step 5: Solve for x
    x = 524,562,145.57/25,341.69
  6. Step 6: Final answer
    x = 20,699.57

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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.