Home / 42,140.16-63,242.88-15,868.80

Finding the Fourth Proportional to 42,140.16, 63,242.88 and 15,868.80

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Solution

The fourth proportional to 42,140.16, 63,242.88 and 15,868.80 is: 23,815.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,140.16 : 63,242.88 = 15,868.80 : x
  2. Step 2: Convert to fraction form
    42,140.16/63,242.88 = 15,868.80/x
  3. Step 3: Cross multiply
    42,140.16x = 63,242.88 × 15,868.80
  4. Step 4: Simplify right side
    42,140.16x = 1,003,588,614.14
  5. Step 5: Solve for x
    x = 1,003,588,614.14/42,140.16
  6. Step 6: Final answer
    x = 23,815.49

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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.