Home / 21,250.90-32,002.86-18,510.67

Finding the Fourth Proportional to 21,250.90, 32,002.86 and 18,510.67

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Solution

The fourth proportional to 21,250.90, 32,002.86 and 18,510.67 is: 27,876.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,250.90 : 32,002.86 = 18,510.67 : x
  2. Step 2: Convert to fraction form
    21,250.90/32,002.86 = 18,510.67/x
  3. Step 3: Cross multiply
    21,250.90x = 32,002.86 × 18,510.67
  4. Step 4: Simplify right side
    21,250.90x = 592,394,127.95
  5. Step 5: Solve for x
    x = 592,394,127.95/21,250.90
  6. Step 6: Final answer
    x = 27,876.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.