Home / 42,280.18-63,415.23-11,117.86

Finding the Fourth Proportional to 42,280.18, 63,415.23 and 11,117.86

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Solution

The fourth proportional to 42,280.18, 63,415.23 and 11,117.86 is: 16,675.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,280.18 : 63,415.23 = 11,117.86 : x
  2. Step 2: Convert to fraction form
    42,280.18/63,415.23 = 11,117.86/x
  3. Step 3: Cross multiply
    42,280.18x = 63,415.23 × 11,117.86
  4. Step 4: Simplify right side
    42,280.18x = 705,041,649.01
  5. Step 5: Solve for x
    x = 705,041,649.01/42,280.18
  6. Step 6: Final answer
    x = 16,675.46

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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.