Home / 42,863.10-64,303.84-21,806.08

Finding the Fourth Proportional to 42,863.10, 64,303.84 and 21,806.08

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Solution

The fourth proportional to 42,863.10, 64,303.84 and 21,806.08 is: 32,713.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,863.10 : 64,303.84 = 21,806.08 : x
  2. Step 2: Convert to fraction form
    42,863.10/64,303.84 = 21,806.08/x
  3. Step 3: Cross multiply
    42,863.10x = 64,303.84 × 21,806.08
  4. Step 4: Simplify right side
    42,863.10x = 1,402,214,679.35
  5. Step 5: Solve for x
    x = 1,402,214,679.35/42,863.10
  6. Step 6: Final answer
    x = 32,713.80

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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.