Home / 42,012.51-63,019.98-15,712.23

Finding the Fourth Proportional to 42,012.51, 63,019.98 and 15,712.23

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Solution

The fourth proportional to 42,012.51, 63,019.98 and 15,712.23 is: 23,568.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,012.51 : 63,019.98 = 15,712.23 : x
  2. Step 2: Convert to fraction form
    42,012.51/63,019.98 = 15,712.23/x
  3. Step 3: Cross multiply
    42,012.51x = 63,019.98 × 15,712.23
  4. Step 4: Simplify right side
    42,012.51x = 990,184,420.36
  5. Step 5: Solve for x
    x = 990,184,420.36/42,012.51
  6. Step 6: Final answer
    x = 23,568.80

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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.