Home / 39,820.21-59,731.02-10,238.40

Finding the Fourth Proportional to 39,820.21, 59,731.02 and 10,238.40

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Solution

The fourth proportional to 39,820.21, 59,731.02 and 10,238.40 is: 15,357.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,820.21 : 59,731.02 = 10,238.40 : x
  2. Step 2: Convert to fraction form
    39,820.21/59,731.02 = 10,238.40/x
  3. Step 3: Cross multiply
    39,820.21x = 59,731.02 × 10,238.40
  4. Step 4: Simplify right side
    39,820.21x = 611,550,075.17
  5. Step 5: Solve for x
    x = 611,550,075.17/39,820.21
  6. Step 6: Final answer
    x = 15,357.78

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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.