Home / 21,029.06-31,477.98-15,488.66

Finding the Fourth Proportional to 21,029.06, 31,477.98 and 15,488.66

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Solution

The fourth proportional to 21,029.06, 31,477.98 and 15,488.66 is: 23,184.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,029.06 : 31,477.98 = 15,488.66 : x
  2. Step 2: Convert to fraction form
    21,029.06/31,477.98 = 15,488.66/x
  3. Step 3: Cross multiply
    21,029.06x = 31,477.98 × 15,488.66
  4. Step 4: Simplify right side
    21,029.06x = 487,551,729.71
  5. Step 5: Solve for x
    x = 487,551,729.71/21,029.06
  6. Step 6: Final answer
    x = 23,184.67

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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.