Home / 42,931.27-64,352.93-17,985.80

Finding the Fourth Proportional to 42,931.27, 64,352.93 and 17,985.80

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Solution

The fourth proportional to 42,931.27, 64,352.93 and 17,985.80 is: 26,960.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,931.27 : 64,352.93 = 17,985.80 : x
  2. Step 2: Convert to fraction form
    42,931.27/64,352.93 = 17,985.80/x
  3. Step 3: Cross multiply
    42,931.27x = 64,352.93 × 17,985.80
  4. Step 4: Simplify right side
    42,931.27x = 1,157,438,738.53
  5. Step 5: Solve for x
    x = 1,157,438,738.53/42,931.27
  6. Step 6: Final answer
    x = 26,960.28

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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.