Home / 28,509.74-39,342.27-15,762.11

Finding the Fourth Proportional to 28,509.74, 39,342.27 and 15,762.11

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Solution

The fourth proportional to 28,509.74, 39,342.27 and 15,762.11 is: 21,751.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,509.74 : 39,342.27 = 15,762.11 : x
  2. Step 2: Convert to fraction form
    28,509.74/39,342.27 = 15,762.11/x
  3. Step 3: Cross multiply
    28,509.74x = 39,342.27 × 15,762.11
  4. Step 4: Simplify right side
    28,509.74x = 620,117,187.39
  5. Step 5: Solve for x
    x = 620,117,187.39/28,509.74
  6. Step 6: Final answer
    x = 21,751.06

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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.