Home / 28,293.70-42,412.74-12,507.34

Finding the Fourth Proportional to 28,293.70, 42,412.74 and 12,507.34

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Solution

The fourth proportional to 28,293.70, 42,412.74 and 12,507.34 is: 18,748.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,293.70 : 42,412.74 = 12,507.34 : x
  2. Step 2: Convert to fraction form
    28,293.70/42,412.74 = 12,507.34/x
  3. Step 3: Cross multiply
    28,293.70x = 42,412.74 × 12,507.34
  4. Step 4: Simplify right side
    28,293.70x = 530,470,559.51
  5. Step 5: Solve for x
    x = 530,470,559.51/28,293.70
  6. Step 6: Final answer
    x = 18,748.72

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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.