Home / 42,130.04-63,206.87-18,439.65

Finding the Fourth Proportional to 42,130.04, 63,206.87 and 18,439.65

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Solution

The fourth proportional to 42,130.04, 63,206.87 and 18,439.65 is: 27,664.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,130.04 : 63,206.87 = 18,439.65 : x
  2. Step 2: Convert to fraction form
    42,130.04/63,206.87 = 18,439.65/x
  3. Step 3: Cross multiply
    42,130.04x = 63,206.87 × 18,439.65
  4. Step 4: Simplify right side
    42,130.04x = 1,165,512,560.40
  5. Step 5: Solve for x
    x = 1,165,512,560.40/42,130.04
  6. Step 6: Final answer
    x = 27,664.64

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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.