Home / 40,378.33-60,528.15-19,312.87

Finding the Fourth Proportional to 40,378.33, 60,528.15 and 19,312.87

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Solution

The fourth proportional to 40,378.33, 60,528.15 and 19,312.87 is: 28,950.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,378.33 : 60,528.15 = 19,312.87 : x
  2. Step 2: Convert to fraction form
    40,378.33/60,528.15 = 19,312.87/x
  3. Step 3: Cross multiply
    40,378.33x = 60,528.15 × 19,312.87
  4. Step 4: Simplify right side
    40,378.33x = 1,168,972,292.29
  5. Step 5: Solve for x
    x = 1,168,972,292.29/40,378.33
  6. Step 6: Final answer
    x = 28,950.49

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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.