Home / 28,337.88-39,106.31-15,762.63

Finding the Fourth Proportional to 28,337.88, 39,106.31 and 15,762.63

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Solution

The fourth proportional to 28,337.88, 39,106.31 and 15,762.63 is: 21,752.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,337.88 : 39,106.31 = 15,762.63 : x
  2. Step 2: Convert to fraction form
    28,337.88/39,106.31 = 15,762.63/x
  3. Step 3: Cross multiply
    28,337.88x = 39,106.31 × 15,762.63
  4. Step 4: Simplify right side
    28,337.88x = 616,418,216.38
  5. Step 5: Solve for x
    x = 616,418,216.38/28,337.88
  6. Step 6: Final answer
    x = 21,752.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.