Home / 28,614.93-39,492.65-15,870.93

Finding the Fourth Proportional to 28,614.93, 39,492.65 and 15,870.93

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Solution

The fourth proportional to 28,614.93, 39,492.65 and 15,870.93 is: 21,904.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,614.93 : 39,492.65 = 15,870.93 : x
  2. Step 2: Convert to fraction form
    28,614.93/39,492.65 = 15,870.93/x
  3. Step 3: Cross multiply
    28,614.93x = 39,492.65 × 15,870.93
  4. Step 4: Simplify right side
    28,614.93x = 626,784,975.24
  5. Step 5: Solve for x
    x = 626,784,975.24/28,614.93
  6. Step 6: Final answer
    x = 21,904.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.