Home / 30,011.20-45,008.88-8,946.24

Finding the Fourth Proportional to 30,011.20, 45,008.88 and 8,946.24

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Solution

The fourth proportional to 30,011.20, 45,008.88 and 8,946.24 is: 13,417.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,011.20 : 45,008.88 = 8,946.24 : x
  2. Step 2: Convert to fraction form
    30,011.20/45,008.88 = 8,946.24/x
  3. Step 3: Cross multiply
    30,011.20x = 45,008.88 × 8,946.24
  4. Step 4: Simplify right side
    30,011.20x = 402,660,242.61
  5. Step 5: Solve for x
    x = 402,660,242.61/30,011.20
  6. Step 6: Final answer
    x = 13,417.00

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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.