Home / 30,887.40-42,624.80-16,740.24

Finding the Fourth Proportional to 30,887.40, 42,624.80 and 16,740.24

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Solution

The fourth proportional to 30,887.40, 42,624.80 and 16,740.24 is: 23,101.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,887.40 : 42,624.80 = 16,740.24 : x
  2. Step 2: Convert to fraction form
    30,887.40/42,624.80 = 16,740.24/x
  3. Step 3: Cross multiply
    30,887.40x = 42,624.80 × 16,740.24
  4. Step 4: Simplify right side
    30,887.40x = 713,549,381.95
  5. Step 5: Solve for x
    x = 713,549,381.95/30,887.40
  6. Step 6: Final answer
    x = 23,101.63

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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.