Home / 39,389.76-59,064.90-13,085.28

Finding the Fourth Proportional to 39,389.76, 59,064.90 and 13,085.28

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Solution

The fourth proportional to 39,389.76, 59,064.90 and 13,085.28 is: 19,621.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,389.76 : 59,064.90 = 13,085.28 : x
  2. Step 2: Convert to fraction form
    39,389.76/59,064.90 = 13,085.28/x
  3. Step 3: Cross multiply
    39,389.76x = 59,064.90 × 13,085.28
  4. Step 4: Simplify right side
    39,389.76x = 772,880,754.67
  5. Step 5: Solve for x
    x = 772,880,754.67/39,389.76
  6. Step 6: Final answer
    x = 19,621.36

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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.