Home / 39,970.89-59,956.52-10,386.63

Finding the Fourth Proportional to 39,970.89, 59,956.52 and 10,386.63

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Solution

The fourth proportional to 39,970.89, 59,956.52 and 10,386.63 is: 15,579.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,970.89 : 59,956.52 = 10,386.63 : x
  2. Step 2: Convert to fraction form
    39,970.89/59,956.52 = 10,386.63/x
  3. Step 3: Cross multiply
    39,970.89x = 59,956.52 × 10,386.63
  4. Step 4: Simplify right side
    39,970.89x = 622,746,137.39
  5. Step 5: Solve for x
    x = 622,746,137.39/39,970.89
  6. Step 6: Final answer
    x = 15,579.99

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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.