Home / 30,587.52-42,210.09-17,158.50

Finding the Fourth Proportional to 30,587.52, 42,210.09 and 17,158.50

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Solution

The fourth proportional to 30,587.52, 42,210.09 and 17,158.50 is: 23,678.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,587.52 : 42,210.09 = 17,158.50 : x
  2. Step 2: Convert to fraction form
    30,587.52/42,210.09 = 17,158.50/x
  3. Step 3: Cross multiply
    30,587.52x = 42,210.09 × 17,158.50
  4. Step 4: Simplify right side
    30,587.52x = 724,261,829.27
  5. Step 5: Solve for x
    x = 724,261,829.27/30,587.52
  6. Step 6: Final answer
    x = 23,678.34

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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.