Home / 30,263.92-45,470.02-28,585.40

Finding the Fourth Proportional to 30,263.92, 45,470.02 and 28,585.40

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Solution

The fourth proportional to 30,263.92, 45,470.02 and 28,585.40 is: 42,948.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,263.92 : 45,470.02 = 28,585.40 : x
  2. Step 2: Convert to fraction form
    30,263.92/45,470.02 = 28,585.40/x
  3. Step 3: Cross multiply
    30,263.92x = 45,470.02 × 28,585.40
  4. Step 4: Simplify right side
    30,263.92x = 1,299,778,709.71
  5. Step 5: Solve for x
    x = 1,299,778,709.71/30,263.92
  6. Step 6: Final answer
    x = 42,948.13

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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.