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Finding the Fourth Proportional to 30,574.80, 45,854.40 and 9,510.72

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Solution

The fourth proportional to 30,574.80, 45,854.40 and 9,510.72 is: 14,263.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,574.80 : 45,854.40 = 9,510.72 : x
  2. Step 2: Convert to fraction form
    30,574.80/45,854.40 = 9,510.72/x
  3. Step 3: Cross multiply
    30,574.80x = 45,854.40 × 9,510.72
  4. Step 4: Simplify right side
    30,574.80x = 436,108,359.17
  5. Step 5: Solve for x
    x = 436,108,359.17/30,574.80
  6. Step 6: Final answer
    x = 14,263.65

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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.