Home / 42,357.08-63,570.60-21,303.12

Finding the Fourth Proportional to 42,357.08, 63,570.60 and 21,303.12

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Solution

The fourth proportional to 42,357.08, 63,570.60 and 21,303.12 is: 31,972.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,357.08 : 63,570.60 = 21,303.12 : x
  2. Step 2: Convert to fraction form
    42,357.08/63,570.60 = 21,303.12/x
  3. Step 3: Cross multiply
    42,357.08x = 63,570.60 × 21,303.12
  4. Step 4: Simplify right side
    42,357.08x = 1,354,252,120.27
  5. Step 5: Solve for x
    x = 1,354,252,120.27/42,357.08
  6. Step 6: Final answer
    x = 31,972.27

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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.