Home / 42,299.35-63,448.85-18,909.38

Finding the Fourth Proportional to 42,299.35, 63,448.85 and 18,909.38

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Solution

The fourth proportional to 42,299.35, 63,448.85 and 18,909.38 is: 28,364.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,299.35 : 63,448.85 = 18,909.38 : x
  2. Step 2: Convert to fraction form
    42,299.35/63,448.85 = 18,909.38/x
  3. Step 3: Cross multiply
    42,299.35x = 63,448.85 × 18,909.38
  4. Step 4: Simplify right side
    42,299.35x = 1,199,778,621.11
  5. Step 5: Solve for x
    x = 1,199,778,621.11/42,299.35
  6. Step 6: Final answer
    x = 28,364.00

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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.