Home / 21,043.02-31,570.02-7,005.18

Finding the Fourth Proportional to 21,043.02, 31,570.02 and 7,005.18

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Solution

The fourth proportional to 21,043.02, 31,570.02 and 7,005.18 is: 10,509.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,043.02 : 31,570.02 = 7,005.18 : x
  2. Step 2: Convert to fraction form
    21,043.02/31,570.02 = 7,005.18/x
  3. Step 3: Cross multiply
    21,043.02x = 31,570.02 × 7,005.18
  4. Step 4: Simplify right side
    21,043.02x = 221,153,672.70
  5. Step 5: Solve for x
    x = 221,153,672.70/21,043.02
  6. Step 6: Final answer
    x = 10,509.60

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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.