Home / 39,812.40-59,718.60-28,148.40

Finding the Fourth Proportional to 39,812.40, 59,718.60 and 28,148.40

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Solution

The fourth proportional to 39,812.40, 59,718.60 and 28,148.40 is: 42,222.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,812.40 : 59,718.60 = 28,148.40 : x
  2. Step 2: Convert to fraction form
    39,812.40/59,718.60 = 28,148.40/x
  3. Step 3: Cross multiply
    39,812.40x = 59,718.60 × 28,148.40
  4. Step 4: Simplify right side
    39,812.40x = 1,680,983,040.24
  5. Step 5: Solve for x
    x = 1,680,983,040.24/39,812.40
  6. Step 6: Final answer
    x = 42,222.60

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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.