Home / 30,605.40-42,262.02-29,030.76

Finding the Fourth Proportional to 30,605.40, 42,262.02 and 29,030.76

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Solution

The fourth proportional to 30,605.40, 42,262.02 and 29,030.76 is: 40,087.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,605.40 : 42,262.02 = 29,030.76 : x
  2. Step 2: Convert to fraction form
    30,605.40/42,262.02 = 29,030.76/x
  3. Step 3: Cross multiply
    30,605.40x = 42,262.02 × 29,030.76
  4. Step 4: Simplify right side
    30,605.40x = 1,226,898,559.74
  5. Step 5: Solve for x
    x = 1,226,898,559.74/30,605.40
  6. Step 6: Final answer
    x = 40,087.65

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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.