Home / 42,858.81-64,292.44-14,775.16

Finding the Fourth Proportional to 42,858.81, 64,292.44 and 14,775.16

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Solution

The fourth proportional to 42,858.81, 64,292.44 and 14,775.16 is: 22,164.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,858.81 : 64,292.44 = 14,775.16 : x
  2. Step 2: Convert to fraction form
    42,858.81/64,292.44 = 14,775.16/x
  3. Step 3: Cross multiply
    42,858.81x = 64,292.44 × 14,775.16
  4. Step 4: Simplify right side
    42,858.81x = 949,931,087.79
  5. Step 5: Solve for x
    x = 949,931,087.79/42,858.81
  6. Step 6: Final answer
    x = 22,164.20

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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.