Home / 21,356.13-32,023.59-7,312.20

Finding the Fourth Proportional to 21,356.13, 32,023.59 and 7,312.20

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Solution

The fourth proportional to 21,356.13, 32,023.59 and 7,312.20 is: 10,964.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,356.13 : 32,023.59 = 7,312.20 : x
  2. Step 2: Convert to fraction form
    21,356.13/32,023.59 = 7,312.20/x
  3. Step 3: Cross multiply
    21,356.13x = 32,023.59 × 7,312.20
  4. Step 4: Simplify right side
    21,356.13x = 234,162,894.80
  5. Step 5: Solve for x
    x = 234,162,894.80/21,356.13
  6. Step 6: Final answer
    x = 10,964.67

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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.