Home / 30,590.13-42,214.29-16,980.24

Finding the Fourth Proportional to 30,590.13, 42,214.29 and 16,980.24

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Solution

The fourth proportional to 30,590.13, 42,214.29 and 16,980.24 is: 23,432.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,590.13 : 42,214.29 = 16,980.24 : x
  2. Step 2: Convert to fraction form
    30,590.13/42,214.29 = 16,980.24/x
  3. Step 3: Cross multiply
    30,590.13x = 42,214.29 × 16,980.24
  4. Step 4: Simplify right side
    30,590.13x = 716,808,775.63
  5. Step 5: Solve for x
    x = 716,808,775.63/30,590.13
  6. Step 6: Final answer
    x = 23,432.68

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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.