Home / 42,468.48-58,632.08-28,140.40

Finding the Fourth Proportional to 42,468.48, 58,632.08 and 28,140.40

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Solution

The fourth proportional to 42,468.48, 58,632.08 and 28,140.40 is: 38,850.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,468.48 : 58,632.08 = 28,140.40 : x
  2. Step 2: Convert to fraction form
    42,468.48/58,632.08 = 28,140.40/x
  3. Step 3: Cross multiply
    42,468.48x = 58,632.08 × 28,140.40
  4. Step 4: Simplify right side
    42,468.48x = 1,649,930,184.03
  5. Step 5: Solve for x
    x = 1,649,930,184.03/42,468.48
  6. Step 6: Final answer
    x = 38,850.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.