Home / 42,565.51-63,870.14-18,889.28

Finding the Fourth Proportional to 42,565.51, 63,870.14 and 18,889.28

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Solution

The fourth proportional to 42,565.51, 63,870.14 and 18,889.28 is: 28,343.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,565.51 : 63,870.14 = 18,889.28 : x
  2. Step 2: Convert to fraction form
    42,565.51/63,870.14 = 18,889.28/x
  3. Step 3: Cross multiply
    42,565.51x = 63,870.14 × 18,889.28
  4. Step 4: Simplify right side
    42,565.51x = 1,206,460,958.10
  5. Step 5: Solve for x
    x = 1,206,460,958.10/42,565.51
  6. Step 6: Final answer
    x = 28,343.63

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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.