Home / 28,549.47-39,397.75-15,802.67

Finding the Fourth Proportional to 28,549.47, 39,397.75 and 15,802.67

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Solution

The fourth proportional to 28,549.47, 39,397.75 and 15,802.67 is: 21,807.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,549.47 : 39,397.75 = 15,802.67 : x
  2. Step 2: Convert to fraction form
    28,549.47/39,397.75 = 15,802.67/x
  3. Step 3: Cross multiply
    28,549.47x = 39,397.75 × 15,802.67
  4. Step 4: Simplify right side
    28,549.47x = 622,589,641.99
  5. Step 5: Solve for x
    x = 622,589,641.99/28,549.47
  6. Step 6: Final answer
    x = 21,807.40

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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.