Home / 30,430.85-45,663.47-16,390.58

Finding the Fourth Proportional to 30,430.85, 45,663.47 and 16,390.58

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Solution

The fourth proportional to 30,430.85, 45,663.47 and 16,390.58 is: 24,595.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,430.85 : 45,663.47 = 16,390.58 : x
  2. Step 2: Convert to fraction form
    30,430.85/45,663.47 = 16,390.58/x
  3. Step 3: Cross multiply
    30,430.85x = 45,663.47 × 16,390.58
  4. Step 4: Simplify right side
    30,430.85x = 748,450,676.16
  5. Step 5: Solve for x
    x = 748,450,676.16/30,430.85
  6. Step 6: Final answer
    x = 24,595.13

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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.