Home / 31,547.80-47,321.70-9,359.20

Finding the Fourth Proportional to 31,547.80, 47,321.70 and 9,359.20

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Solution

The fourth proportional to 31,547.80, 47,321.70 and 9,359.20 is: 14,038.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,547.80 : 47,321.70 = 9,359.20 : x
  2. Step 2: Convert to fraction form
    31,547.80/47,321.70 = 9,359.20/x
  3. Step 3: Cross multiply
    31,547.80x = 47,321.70 × 9,359.20
  4. Step 4: Simplify right side
    31,547.80x = 442,893,254.64
  5. Step 5: Solve for x
    x = 442,893,254.64/31,547.80
  6. Step 6: Final answer
    x = 14,038.80

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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.