Home / 42,421.40-63,632.10-19,093.40

Finding the Fourth Proportional to 42,421.40, 63,632.10 and 19,093.40

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Solution

The fourth proportional to 42,421.40, 63,632.10 and 19,093.40 is: 28,640.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,421.40 : 63,632.10 = 19,093.40 : x
  2. Step 2: Convert to fraction form
    42,421.40/63,632.10 = 19,093.40/x
  3. Step 3: Cross multiply
    42,421.40x = 63,632.10 × 19,093.40
  4. Step 4: Simplify right side
    42,421.40x = 1,214,953,138.14
  5. Step 5: Solve for x
    x = 1,214,953,138.14/42,421.40
  6. Step 6: Final answer
    x = 28,640.10

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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.