Home / 28,718.48-43,040.28-14,666.67

Finding the Fourth Proportional to 28,718.48, 43,040.28 and 14,666.67

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Solution

The fourth proportional to 28,718.48, 43,040.28 and 14,666.67 is: 21,980.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,718.48 : 43,040.28 = 14,666.67 : x
  2. Step 2: Convert to fraction form
    28,718.48/43,040.28 = 14,666.67/x
  3. Step 3: Cross multiply
    28,718.48x = 43,040.28 × 14,666.67
  4. Step 4: Simplify right side
    28,718.48x = 631,257,583.47
  5. Step 5: Solve for x
    x = 631,257,583.47/28,718.48
  6. Step 6: Final answer
    x = 21,980.89

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1.5x scale

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.