Home / 20,973.23-31,437.98-8,501.87

Finding the Fourth Proportional to 20,973.23, 31,437.98 and 8,501.87

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Solution

The fourth proportional to 20,973.23, 31,437.98 and 8,501.87 is: 12,743.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,973.23 : 31,437.98 = 8,501.87 : x
  2. Step 2: Convert to fraction form
    20,973.23/31,437.98 = 8,501.87/x
  3. Step 3: Cross multiply
    20,973.23x = 31,437.98 × 8,501.87
  4. Step 4: Simplify right side
    20,973.23x = 267,281,451.21
  5. Step 5: Solve for x
    x = 267,281,451.21/20,973.23
  6. Step 6: Final answer
    x = 12,743.93

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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.