Home / 30,828.59-42,543.65-17,400.41

Finding the Fourth Proportional to 30,828.59, 42,543.65 and 17,400.41

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Solution

The fourth proportional to 30,828.59, 42,543.65 and 17,400.41 is: 24,012.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,828.59 : 42,543.65 = 17,400.41 : x
  2. Step 2: Convert to fraction form
    30,828.59/42,543.65 = 17,400.41/x
  3. Step 3: Cross multiply
    30,828.59x = 42,543.65 × 17,400.41
  4. Step 4: Simplify right side
    30,828.59x = 740,276,865.89
  5. Step 5: Solve for x
    x = 740,276,865.89/30,828.59
  6. Step 6: Final answer
    x = 24,012.67

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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.