Home / 21,547.55-32,312.48-8,225.40

Finding the Fourth Proportional to 21,547.55, 32,312.48 and 8,225.40

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Solution

The fourth proportional to 21,547.55, 32,312.48 and 8,225.40 is: 12,334.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,547.55 : 32,312.48 = 8,225.40 : x
  2. Step 2: Convert to fraction form
    21,547.55/32,312.48 = 8,225.40/x
  3. Step 3: Cross multiply
    21,547.55x = 32,312.48 × 8,225.40
  4. Step 4: Simplify right side
    21,547.55x = 265,783,031.87
  5. Step 5: Solve for x
    x = 265,783,031.87/21,547.55
  6. Step 6: Final answer
    x = 12,334.72

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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.